Home / 22,160.76-30,580.28-12,471.63

Finding the Fourth Proportional to 22,160.76, 30,580.28 and 12,471.63

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Solution

The fourth proportional to 22,160.76, 30,580.28 and 12,471.63 is: 17,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.76 : 30,580.28 = 12,471.63 : x
  2. Step 2: Convert to fraction form
    22,160.76/30,580.28 = 12,471.63/x
  3. Step 3: Cross multiply
    22,160.76x = 30,580.28 × 12,471.63
  4. Step 4: Simplify right side
    22,160.76x = 381,385,875.10
  5. Step 5: Solve for x
    x = 381,385,875.10/22,160.76
  6. Step 6: Final answer
    x = 17,209.96

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Half scale
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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.