Home / 31,472.76-43,426.89-18,897.78

Finding the Fourth Proportional to 31,472.76, 43,426.89 and 18,897.78

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Solution

The fourth proportional to 31,472.76, 43,426.89 and 18,897.78 is: 26,075.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,472.76 : 43,426.89 = 18,897.78 : x
  2. Step 2: Convert to fraction form
    31,472.76/43,426.89 = 18,897.78/x
  3. Step 3: Cross multiply
    31,472.76x = 43,426.89 × 18,897.78
  4. Step 4: Simplify right side
    31,472.76x = 820,671,813.30
  5. Step 5: Solve for x
    x = 820,671,813.30/31,472.76
  6. Step 6: Final answer
    x = 26,075.62

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Double scale
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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.