Home / 27,987.62-38,605.56-16,649.45

Finding the Fourth Proportional to 27,987.62, 38,605.56 and 16,649.45

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Solution

The fourth proportional to 27,987.62, 38,605.56 and 16,649.45 is: 22,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.62 : 38,605.56 = 16,649.45 : x
  2. Step 2: Convert to fraction form
    27,987.62/38,605.56 = 16,649.45/x
  3. Step 3: Cross multiply
    27,987.62x = 38,605.56 × 16,649.45
  4. Step 4: Simplify right side
    27,987.62x = 642,761,147.91
  5. Step 5: Solve for x
    x = 642,761,147.91/27,987.62
  6. Step 6: Final answer
    x = 22,965.91

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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.