Home / 28,587.88-39,452.50-16,649.28

Finding the Fourth Proportional to 28,587.88, 39,452.50 and 16,649.28

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Solution

The fourth proportional to 28,587.88, 39,452.50 and 16,649.28 is: 22,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587.88 : 39,452.50 = 16,649.28 : x
  2. Step 2: Convert to fraction form
    28,587.88/39,452.50 = 16,649.28/x
  3. Step 3: Cross multiply
    28,587.88x = 39,452.50 × 16,649.28
  4. Step 4: Simplify right side
    28,587.88x = 656,855,719.20
  5. Step 5: Solve for x
    x = 656,855,719.20/28,587.88
  6. Step 6: Final answer
    x = 22,976.72

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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.