Home / 31,623.15-47,429.95-11,897.11

Finding the Fourth Proportional to 31,623.15, 47,429.95 and 11,897.11

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Solution

The fourth proportional to 31,623.15, 47,429.95 and 11,897.11 is: 17,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,623.15 : 47,429.95 = 11,897.11 : x
  2. Step 2: Convert to fraction form
    31,623.15/47,429.95 = 11,897.11/x
  3. Step 3: Cross multiply
    31,623.15x = 47,429.95 × 11,897.11
  4. Step 4: Simplify right side
    31,623.15x = 564,279,332.44
  5. Step 5: Solve for x
    x = 564,279,332.44/31,623.15
  6. Step 6: Final answer
    x = 17,843.87

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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.