Home / 27,621.20-38,117-15,045.84

Finding the Fourth Proportional to 27,621.20, 38,117 and 15,045.84

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Solution

The fourth proportional to 27,621.20, 38,117 and 15,045.84 is: 20,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.20 : 38,117 = 15,045.84 : x
  2. Step 2: Convert to fraction form
    27,621.20/38,117 = 15,045.84/x
  3. Step 3: Cross multiply
    27,621.20x = 38,117 × 15,045.84
  4. Step 4: Simplify right side
    27,621.20x = 573,502,283.28
  5. Step 5: Solve for x
    x = 573,502,283.28/27,621.20
  6. Step 6: Final answer
    x = 20,763.12

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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.