Home / 39,448.53-54,439.92-21,543.39

Finding the Fourth Proportional to 39,448.53, 54,439.92 and 21,543.39

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Solution

The fourth proportional to 39,448.53, 54,439.92 and 21,543.39 is: 29,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,448.53 : 54,439.92 = 21,543.39 : x
  2. Step 2: Convert to fraction form
    39,448.53/54,439.92 = 21,543.39/x
  3. Step 3: Cross multiply
    39,448.53x = 54,439.92 × 21,543.39
  4. Step 4: Simplify right side
    39,448.53x = 1,172,820,428.13
  5. Step 5: Solve for x
    x = 1,172,820,428.13/39,448.53
  6. Step 6: Final answer
    x = 29,730.40

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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.