Home / 21,487.02-32,240.07-8,340.39

Finding the Fourth Proportional to 21,487.02, 32,240.07 and 8,340.39

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Solution

The fourth proportional to 21,487.02, 32,240.07 and 8,340.39 is: 12,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.02 : 32,240.07 = 8,340.39 : x
  2. Step 2: Convert to fraction form
    21,487.02/32,240.07 = 8,340.39/x
  3. Step 3: Cross multiply
    21,487.02x = 32,240.07 × 8,340.39
  4. Step 4: Simplify right side
    21,487.02x = 268,894,757.43
  5. Step 5: Solve for x
    x = 268,894,757.43/21,487.02
  6. Step 6: Final answer
    x = 12,514.29

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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.