Home / 20,767.55-28,649.23-13,594.30

Finding the Fourth Proportional to 20,767.55, 28,649.23 and 13,594.30

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Solution

The fourth proportional to 20,767.55, 28,649.23 and 13,594.30 is: 18,753.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.55 : 28,649.23 = 13,594.30 : x
  2. Step 2: Convert to fraction form
    20,767.55/28,649.23 = 13,594.30/x
  3. Step 3: Cross multiply
    20,767.55x = 28,649.23 × 13,594.30
  4. Step 4: Simplify right side
    20,767.55x = 389,466,016.17
  5. Step 5: Solve for x
    x = 389,466,016.17/20,767.55
  6. Step 6: Final answer
    x = 18,753.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.