Home / 39,448.31-54,439.10-21,543.84

Finding the Fourth Proportional to 39,448.31, 54,439.10 and 21,543.84

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Solution

The fourth proportional to 39,448.31, 54,439.10 and 21,543.84 is: 29,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,448.31 : 54,439.10 = 21,543.84 : x
  2. Step 2: Convert to fraction form
    39,448.31/54,439.10 = 21,543.84/x
  3. Step 3: Cross multiply
    39,448.31x = 54,439.10 × 21,543.84
  4. Step 4: Simplify right side
    39,448.31x = 1,172,827,206.28
  5. Step 5: Solve for x
    x = 1,172,827,206.28/39,448.31
  6. Step 6: Final answer
    x = 29,730.74

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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.