Home / 21,862.60-32,756.10-10,151.80

Finding the Fourth Proportional to 21,862.60, 32,756.10 and 10,151.80

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Solution

The fourth proportional to 21,862.60, 32,756.10 and 10,151.80 is: 15,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,862.60 : 32,756.10 = 10,151.80 : x
  2. Step 2: Convert to fraction form
    21,862.60/32,756.10 = 10,151.80/x
  3. Step 3: Cross multiply
    21,862.60x = 32,756.10 × 10,151.80
  4. Step 4: Simplify right side
    21,862.60x = 332,533,375.98
  5. Step 5: Solve for x
    x = 332,533,375.98/21,862.60
  6. Step 6: Final answer
    x = 15,210.15

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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.