Home / 27,645.20-38,130.92-17,031.44

Finding the Fourth Proportional to 27,645.20, 38,130.92 and 17,031.44

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Solution

The fourth proportional to 27,645.20, 38,130.92 and 17,031.44 is: 23,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.20 : 38,130.92 = 17,031.44 : x
  2. Step 2: Convert to fraction form
    27,645.20/38,130.92 = 17,031.44/x
  3. Step 3: Cross multiply
    27,645.20x = 38,130.92 × 17,031.44
  4. Step 4: Simplify right side
    27,645.20x = 649,424,476.12
  5. Step 5: Solve for x
    x = 649,424,476.12/27,645.20
  6. Step 6: Final answer
    x = 23,491.40

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Half scale
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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.