Home / 22,061.87-30,445.57-11,990.30

Finding the Fourth Proportional to 22,061.87, 30,445.57 and 11,990.30

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Solution

The fourth proportional to 22,061.87, 30,445.57 and 11,990.30 is: 16,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,061.87 : 30,445.57 = 11,990.30 : x
  2. Step 2: Convert to fraction form
    22,061.87/30,445.57 = 11,990.30/x
  3. Step 3: Cross multiply
    22,061.87x = 30,445.57 × 11,990.30
  4. Step 4: Simplify right side
    22,061.87x = 365,051,564.11
  5. Step 5: Solve for x
    x = 365,051,564.11/22,061.87
  6. Step 6: Final answer
    x = 16,546.72

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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.