Home / 23,545.40-35,318.10-21,990.20

Finding the Fourth Proportional to 23,545.40, 35,318.10 and 21,990.20

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Solution

The fourth proportional to 23,545.40, 35,318.10 and 21,990.20 is: 32,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,545.40 : 35,318.10 = 21,990.20 : x
  2. Step 2: Convert to fraction form
    23,545.40/35,318.10 = 21,990.20/x
  3. Step 3: Cross multiply
    23,545.40x = 35,318.10 × 21,990.20
  4. Step 4: Simplify right side
    23,545.40x = 776,652,082.62
  5. Step 5: Solve for x
    x = 776,652,082.62/23,545.40
  6. Step 6: Final answer
    x = 32,985.30

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Double scale
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Similar ratio
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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.