Home / 20,772.09-31,158.13-16,456.41

Finding the Fourth Proportional to 20,772.09, 31,158.13 and 16,456.41

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Solution

The fourth proportional to 20,772.09, 31,158.13 and 16,456.41 is: 24,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.09 : 31,158.13 = 16,456.41 : x
  2. Step 2: Convert to fraction form
    20,772.09/31,158.13 = 16,456.41/x
  3. Step 3: Cross multiply
    20,772.09x = 31,158.13 × 16,456.41
  4. Step 4: Simplify right side
    20,772.09x = 512,750,962.11
  5. Step 5: Solve for x
    x = 512,750,962.11/20,772.09
  6. Step 6: Final answer
    x = 24,684.61

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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.