Home / 28,327.32-39,092.76-15,752.88

Finding the Fourth Proportional to 28,327.32, 39,092.76 and 15,752.88

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Solution

The fourth proportional to 28,327.32, 39,092.76 and 15,752.88 is: 21,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.32 : 39,092.76 = 15,752.88 : x
  2. Step 2: Convert to fraction form
    28,327.32/39,092.76 = 15,752.88/x
  3. Step 3: Cross multiply
    28,327.32x = 39,092.76 × 15,752.88
  4. Step 4: Simplify right side
    28,327.32x = 615,823,557.15
  5. Step 5: Solve for x
    x = 615,823,557.15/28,327.32
  6. Step 6: Final answer
    x = 21,739.56

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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.