Home / 39,282.46-54,209.02-21,377.77

Finding the Fourth Proportional to 39,282.46, 54,209.02 and 21,377.77

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Solution

The fourth proportional to 39,282.46, 54,209.02 and 21,377.77 is: 29,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.46 : 54,209.02 = 21,377.77 : x
  2. Step 2: Convert to fraction form
    39,282.46/54,209.02 = 21,377.77/x
  3. Step 3: Cross multiply
    39,282.46x = 54,209.02 × 21,377.77
  4. Step 4: Simplify right side
    39,282.46x = 1,158,867,772.52
  5. Step 5: Solve for x
    x = 1,158,867,772.52/39,282.46
  6. Step 6: Final answer
    x = 29,500.90

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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.