Home / 27,987.53-38,629.37-17,385.17

Finding the Fourth Proportional to 27,987.53, 38,629.37 and 17,385.17

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Solution

The fourth proportional to 27,987.53, 38,629.37 and 17,385.17 is: 23,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.53 : 38,629.37 = 17,385.17 : x
  2. Step 2: Convert to fraction form
    27,987.53/38,629.37 = 17,385.17/x
  3. Step 3: Cross multiply
    27,987.53x = 38,629.37 × 17,385.17
  4. Step 4: Simplify right side
    27,987.53x = 671,578,014.76
  5. Step 5: Solve for x
    x = 671,578,014.76/27,987.53
  6. Step 6: Final answer
    x = 23,995.62

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Similar ratio
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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.