Home / 31,854-47,793.18-11,875.72

Finding the Fourth Proportional to 31,854, 47,793.18 and 11,875.72

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Solution

The fourth proportional to 31,854, 47,793.18 and 11,875.72 is: 17,818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,854 : 47,793.18 = 11,875.72 : x
  2. Step 2: Convert to fraction form
    31,854/47,793.18 = 11,875.72/x
  3. Step 3: Cross multiply
    31,854x = 47,793.18 × 11,875.72
  4. Step 4: Simplify right side
    31,854x = 567,578,423.59
  5. Step 5: Solve for x
    x = 567,578,423.59/31,854
  6. Step 6: Final answer
    x = 17,818.12

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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.