Home / 23,687.60-35,531.40-13,821.80

Finding the Fourth Proportional to 23,687.60, 35,531.40 and 13,821.80

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Solution

The fourth proportional to 23,687.60, 35,531.40 and 13,821.80 is: 20,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,687.60 : 35,531.40 = 13,821.80 : x
  2. Step 2: Convert to fraction form
    23,687.60/35,531.40 = 13,821.80/x
  3. Step 3: Cross multiply
    23,687.60x = 35,531.40 × 13,821.80
  4. Step 4: Simplify right side
    23,687.60x = 491,107,904.52
  5. Step 5: Solve for x
    x = 491,107,904.52/23,687.60
  6. Step 6: Final answer
    x = 20,732.70

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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.