Home / 27,621.68-38,119.08-15,047.12

Finding the Fourth Proportional to 27,621.68, 38,119.08 and 15,047.12

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Solution

The fourth proportional to 27,621.68, 38,119.08 and 15,047.12 is: 20,765.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.68 : 38,119.08 = 15,047.12 : x
  2. Step 2: Convert to fraction form
    27,621.68/38,119.08 = 15,047.12/x
  3. Step 3: Cross multiply
    27,621.68x = 38,119.08 × 15,047.12
  4. Step 4: Simplify right side
    27,621.68x = 573,582,371.05
  5. Step 5: Solve for x
    x = 573,582,371.05/27,621.68
  6. Step 6: Final answer
    x = 20,765.66

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Half scale
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Double scale
Find fourth proportional to 27,622.68, 38,120.46 and 15,048.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.