Home / 39,344.25-54,294.83-21,439.20

Finding the Fourth Proportional to 39,344.25, 54,294.83 and 21,439.20

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Solution

The fourth proportional to 39,344.25, 54,294.83 and 21,439.20 is: 29,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,344.25 : 54,294.83 = 21,439.20 : x
  2. Step 2: Convert to fraction form
    39,344.25/54,294.83 = 21,439.20/x
  3. Step 3: Cross multiply
    39,344.25x = 54,294.83 × 21,439.20
  4. Step 4: Simplify right side
    39,344.25x = 1,164,037,612.14
  5. Step 5: Solve for x
    x = 1,164,037,612.14/39,344.25
  6. Step 6: Final answer
    x = 29,585.97

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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.