Home / 31,248.52-43,078.13-22,280.47

Finding the Fourth Proportional to 31,248.52, 43,078.13 and 22,280.47

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Solution

The fourth proportional to 31,248.52, 43,078.13 and 22,280.47 is: 30,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.52 : 43,078.13 = 22,280.47 : x
  2. Step 2: Convert to fraction form
    31,248.52/43,078.13 = 22,280.47/x
  3. Step 3: Cross multiply
    31,248.52x = 43,078.13 × 22,280.47
  4. Step 4: Simplify right side
    31,248.52x = 959,800,847.58
  5. Step 5: Solve for x
    x = 959,800,847.58/31,248.52
  6. Step 6: Final answer
    x = 30,715.08

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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.