Home / 31,921.80-47,890.94-15,294.66

Finding the Fourth Proportional to 31,921.80, 47,890.94 and 15,294.66

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Solution

The fourth proportional to 31,921.80, 47,890.94 and 15,294.66 is: 22,945.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.80 : 47,890.94 = 15,294.66 : x
  2. Step 2: Convert to fraction form
    31,921.80/47,890.94 = 15,294.66/x
  3. Step 3: Cross multiply
    31,921.80x = 47,890.94 × 15,294.66
  4. Step 4: Simplify right side
    31,921.80x = 732,475,567.91
  5. Step 5: Solve for x
    x = 732,475,567.91/31,921.80
  6. Step 6: Final answer
    x = 22,945.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.