Home / 27,616.48-38,109.28-15,679.52

Finding the Fourth Proportional to 27,616.48, 38,109.28 and 15,679.52

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Solution

The fourth proportional to 27,616.48, 38,109.28 and 15,679.52 is: 21,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,616.48 : 38,109.28 = 15,679.52 : x
  2. Step 2: Convert to fraction form
    27,616.48/38,109.28 = 15,679.52/x
  3. Step 3: Cross multiply
    27,616.48x = 38,109.28 × 15,679.52
  4. Step 4: Simplify right side
    27,616.48x = 597,535,217.95
  5. Step 5: Solve for x
    x = 597,535,217.95/27,616.48
  6. Step 6: Final answer
    x = 21,636.91

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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.