Home / 28,322.76-39,087.18-15,747.24

Finding the Fourth Proportional to 28,322.76, 39,087.18 and 15,747.24

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Solution

The fourth proportional to 28,322.76, 39,087.18 and 15,747.24 is: 21,732.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.76 : 39,087.18 = 15,747.24 : x
  2. Step 2: Convert to fraction form
    28,322.76/39,087.18 = 15,747.24/x
  3. Step 3: Cross multiply
    28,322.76x = 39,087.18 × 15,747.24
  4. Step 4: Simplify right side
    28,322.76x = 615,515,204.38
  5. Step 5: Solve for x
    x = 615,515,204.38/28,322.76
  6. Step 6: Final answer
    x = 21,732.18

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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.