Home / 21,451.61-32,197.34-15,453.90

Finding the Fourth Proportional to 21,451.61, 32,197.34 and 15,453.90

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Solution

The fourth proportional to 21,451.61, 32,197.34 and 15,453.90 is: 23,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451.61 : 32,197.34 = 15,453.90 : x
  2. Step 2: Convert to fraction form
    21,451.61/32,197.34 = 15,453.90/x
  3. Step 3: Cross multiply
    21,451.61x = 32,197.34 × 15,453.90
  4. Step 4: Simplify right side
    21,451.61x = 497,574,511.26
  5. Step 5: Solve for x
    x = 497,574,511.26/21,451.61
  6. Step 6: Final answer
    x = 23,195.20

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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.