Home / 15,279.35-22,814.50-13,687.80

Finding the Fourth Proportional to 15,279.35, 22,814.50 and 13,687.80

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Solution

The fourth proportional to 15,279.35, 22,814.50 and 13,687.80 is: 20,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279.35 : 22,814.50 = 13,687.80 : x
  2. Step 2: Convert to fraction form
    15,279.35/22,814.50 = 13,687.80/x
  3. Step 3: Cross multiply
    15,279.35x = 22,814.50 × 13,687.80
  4. Step 4: Simplify right side
    15,279.35x = 312,280,244.66
  5. Step 5: Solve for x
    x = 312,280,244.66/15,279.35
  6. Step 6: Final answer
    x = 20,438.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.