Home / 21,732.60-32,590.80-7,687.20

Finding the Fourth Proportional to 21,732.60, 32,590.80 and 7,687.20

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Solution

The fourth proportional to 21,732.60, 32,590.80 and 7,687.20 is: 11,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,732.60 : 32,590.80 = 7,687.20 : x
  2. Step 2: Convert to fraction form
    21,732.60/32,590.80 = 7,687.20/x
  3. Step 3: Cross multiply
    21,732.60x = 32,590.80 × 7,687.20
  4. Step 4: Simplify right side
    21,732.60x = 250,531,997.76
  5. Step 5: Solve for x
    x = 250,531,997.76/21,732.60
  6. Step 6: Final answer
    x = 11,527.93

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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.