Home / 27,113.47-37,390.30-21,142.96

Finding the Fourth Proportional to 27,113.47, 37,390.30 and 21,142.96

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Solution

The fourth proportional to 27,113.47, 37,390.30 and 21,142.96 is: 29,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,113.47 : 37,390.30 = 21,142.96 : x
  2. Step 2: Convert to fraction form
    27,113.47/37,390.30 = 21,142.96/x
  3. Step 3: Cross multiply
    27,113.47x = 37,390.30 × 21,142.96
  4. Step 4: Simplify right side
    27,113.47x = 790,541,470.95
  5. Step 5: Solve for x
    x = 790,541,470.95/27,113.47
  6. Step 6: Final answer
    x = 29,156.78

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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.