Home / 15,545.70-23,318.55-13,905.45

Finding the Fourth Proportional to 15,545.70, 23,318.55 and 13,905.45

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Solution

The fourth proportional to 15,545.70, 23,318.55 and 13,905.45 is: 20,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.70 : 23,318.55 = 13,905.45 : x
  2. Step 2: Convert to fraction form
    15,545.70/23,318.55 = 13,905.45/x
  3. Step 3: Cross multiply
    15,545.70x = 23,318.55 × 13,905.45
  4. Step 4: Simplify right side
    15,545.70x = 324,254,931.10
  5. Step 5: Solve for x
    x = 324,254,931.10/15,545.70
  6. Step 6: Final answer
    x = 20,858.18

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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.