Home / 21,375.43-32,045.88-8,904.85

Finding the Fourth Proportional to 21,375.43, 32,045.88 and 8,904.85

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Solution

The fourth proportional to 21,375.43, 32,045.88 and 8,904.85 is: 13,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.43 : 32,045.88 = 8,904.85 : x
  2. Step 2: Convert to fraction form
    21,375.43/32,045.88 = 8,904.85/x
  3. Step 3: Cross multiply
    21,375.43x = 32,045.88 × 8,904.85
  4. Step 4: Simplify right side
    21,375.43x = 285,363,754.52
  5. Step 5: Solve for x
    x = 285,363,754.52/21,375.43
  6. Step 6: Final answer
    x = 13,350.08

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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.