Home / 21,375.80-32,071.90-15,056.74

Finding the Fourth Proportional to 21,375.80, 32,071.90 and 15,056.74

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Solution

The fourth proportional to 21,375.80, 32,071.90 and 15,056.74 is: 22,590.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.80 : 32,071.90 = 15,056.74 : x
  2. Step 2: Convert to fraction form
    21,375.80/32,071.90 = 15,056.74/x
  3. Step 3: Cross multiply
    21,375.80x = 32,071.90 × 15,056.74
  4. Step 4: Simplify right side
    21,375.80x = 482,898,109.88
  5. Step 5: Solve for x
    x = 482,898,109.88/21,375.80
  6. Step 6: Final answer
    x = 22,590.88

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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.