Home / 27,649.25-38,125.80-18,681.17

Finding the Fourth Proportional to 27,649.25, 38,125.80 and 18,681.17

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Solution

The fourth proportional to 27,649.25, 38,125.80 and 18,681.17 is: 25,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.25 : 38,125.80 = 18,681.17 : x
  2. Step 2: Convert to fraction form
    27,649.25/38,125.80 = 18,681.17/x
  3. Step 3: Cross multiply
    27,649.25x = 38,125.80 × 18,681.17
  4. Step 4: Simplify right side
    27,649.25x = 712,234,551.19
  5. Step 5: Solve for x
    x = 712,234,551.19/27,649.25
  6. Step 6: Final answer
    x = 25,759.63

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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.