Home / 27,270.36-37,630.98-15,331.38

Finding the Fourth Proportional to 27,270.36, 37,630.98 and 15,331.38

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Solution

The fourth proportional to 27,270.36, 37,630.98 and 15,331.38 is: 21,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,270.36 : 37,630.98 = 15,331.38 : x
  2. Step 2: Convert to fraction form
    27,270.36/37,630.98 = 15,331.38/x
  3. Step 3: Cross multiply
    27,270.36x = 37,630.98 × 15,331.38
  4. Step 4: Simplify right side
    27,270.36x = 576,934,854.15
  5. Step 5: Solve for x
    x = 576,934,854.15/27,270.36
  6. Step 6: Final answer
    x = 21,156.11

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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.