Home / 28,432.17-39,236.58-15,685.83

Finding the Fourth Proportional to 28,432.17, 39,236.58 and 15,685.83

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Solution

The fourth proportional to 28,432.17, 39,236.58 and 15,685.83 is: 21,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.17 : 39,236.58 = 15,685.83 : x
  2. Step 2: Convert to fraction form
    28,432.17/39,236.58 = 15,685.83/x
  3. Step 3: Cross multiply
    28,432.17x = 39,236.58 × 15,685.83
  4. Step 4: Simplify right side
    28,432.17x = 615,458,323.66
  5. Step 5: Solve for x
    x = 615,458,323.66/28,432.17
  6. Step 6: Final answer
    x = 21,646.55

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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.