Home / 22,391.12-30,898.17-12,319.98

Finding the Fourth Proportional to 22,391.12, 30,898.17 and 12,319.98

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Solution

The fourth proportional to 22,391.12, 30,898.17 and 12,319.98 is: 17,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.12 : 30,898.17 = 12,319.98 : x
  2. Step 2: Convert to fraction form
    22,391.12/30,898.17 = 12,319.98/x
  3. Step 3: Cross multiply
    22,391.12x = 30,898.17 × 12,319.98
  4. Step 4: Simplify right side
    22,391.12x = 380,664,836.44
  5. Step 5: Solve for x
    x = 380,664,836.44/22,391.12
  6. Step 6: Final answer
    x = 17,000.71

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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.