Home / 38,397.28-52,988.16-21,630.16

Finding the Fourth Proportional to 38,397.28, 52,988.16 and 21,630.16

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Solution

The fourth proportional to 38,397.28, 52,988.16 and 21,630.16 is: 29,849.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,397.28 : 52,988.16 = 21,630.16 : x
  2. Step 2: Convert to fraction form
    38,397.28/52,988.16 = 21,630.16/x
  3. Step 3: Cross multiply
    38,397.28x = 52,988.16 × 21,630.16
  4. Step 4: Simplify right side
    38,397.28x = 1,146,142,378.91
  5. Step 5: Solve for x
    x = 1,146,142,378.91/38,397.28
  6. Step 6: Final answer
    x = 29,849.57

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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.