Home / 39,447.41-54,438.62-21,543.30

Finding the Fourth Proportional to 39,447.41, 54,438.62 and 21,543.30

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Solution

The fourth proportional to 39,447.41, 54,438.62 and 21,543.30 is: 29,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,447.41 : 54,438.62 = 21,543.30 : x
  2. Step 2: Convert to fraction form
    39,447.41/54,438.62 = 21,543.30/x
  3. Step 3: Cross multiply
    39,447.41x = 54,438.62 × 21,543.30
  4. Step 4: Simplify right side
    39,447.41x = 1,172,787,414.53
  5. Step 5: Solve for x
    x = 1,172,787,414.53/39,447.41
  6. Step 6: Final answer
    x = 29,730.41

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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.