Home / 31,177.91-42,938.12-29,176.85

Finding the Fourth Proportional to 31,177.91, 42,938.12 and 29,176.85

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Solution

The fourth proportional to 31,177.91, 42,938.12 and 29,176.85 is: 40,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,177.91 : 42,938.12 = 29,176.85 : x
  2. Step 2: Convert to fraction form
    31,177.91/42,938.12 = 29,176.85/x
  3. Step 3: Cross multiply
    31,177.91x = 42,938.12 × 29,176.85
  4. Step 4: Simplify right side
    31,177.91x = 1,252,798,944.77
  5. Step 5: Solve for x
    x = 1,252,798,944.77/31,177.91
  6. Step 6: Final answer
    x = 40,182.27

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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.