Home / 27,732.40-38,270.48-15,157.12

Finding the Fourth Proportional to 27,732.40, 38,270.48 and 15,157.12

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Solution

The fourth proportional to 27,732.40, 38,270.48 and 15,157.12 is: 20,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,732.40 : 38,270.48 = 15,157.12 : x
  2. Step 2: Convert to fraction form
    27,732.40/38,270.48 = 15,157.12/x
  3. Step 3: Cross multiply
    27,732.40x = 38,270.48 × 15,157.12
  4. Step 4: Simplify right side
    27,732.40x = 580,070,257.82
  5. Step 5: Solve for x
    x = 580,070,257.82/27,732.40
  6. Step 6: Final answer
    x = 20,916.70

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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.