Home / 20,894.73-31,337.19-12,463.59

Finding the Fourth Proportional to 20,894.73, 31,337.19 and 12,463.59

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Solution

The fourth proportional to 20,894.73, 31,337.19 and 12,463.59 is: 18,692.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.73 : 31,337.19 = 12,463.59 : x
  2. Step 2: Convert to fraction form
    20,894.73/31,337.19 = 12,463.59/x
  3. Step 3: Cross multiply
    20,894.73x = 31,337.19 × 12,463.59
  4. Step 4: Simplify right side
    20,894.73x = 390,573,887.91
  5. Step 5: Solve for x
    x = 390,573,887.91/20,894.73
  6. Step 6: Final answer
    x = 18,692.46

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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.