Home / 27,622.56-38,119.20-15,047.40

Finding the Fourth Proportional to 27,622.56, 38,119.20 and 15,047.40

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Solution

The fourth proportional to 27,622.56, 38,119.20 and 15,047.40 is: 20,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,622.56 : 38,119.20 = 15,047.40 : x
  2. Step 2: Convert to fraction form
    27,622.56/38,119.20 = 15,047.40/x
  3. Step 3: Cross multiply
    27,622.56x = 38,119.20 × 15,047.40
  4. Step 4: Simplify right side
    27,622.56x = 573,594,850.08
  5. Step 5: Solve for x
    x = 573,594,850.08/27,622.56
  6. Step 6: Final answer
    x = 20,765.45

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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.