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Finding the Fourth Proportional to 15,523.80, 23,285.70 and 14,138.70

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Solution

The fourth proportional to 15,523.80, 23,285.70 and 14,138.70 is: 21,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.80 : 23,285.70 = 14,138.70 : x
  2. Step 2: Convert to fraction form
    15,523.80/23,285.70 = 14,138.70/x
  3. Step 3: Cross multiply
    15,523.80x = 23,285.70 × 14,138.70
  4. Step 4: Simplify right side
    15,523.80x = 329,229,526.59
  5. Step 5: Solve for x
    x = 329,229,526.59/15,523.80
  6. Step 6: Final answer
    x = 21,208.05

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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.