Home / 27,750.40-38,294.98-15,175.15

Finding the Fourth Proportional to 27,750.40, 38,294.98 and 15,175.15

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Solution

The fourth proportional to 27,750.40, 38,294.98 and 15,175.15 is: 20,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.40 : 38,294.98 = 15,175.15 : x
  2. Step 2: Convert to fraction form
    27,750.40/38,294.98 = 15,175.15/x
  3. Step 3: Cross multiply
    27,750.40x = 38,294.98 × 15,175.15
  4. Step 4: Simplify right side
    27,750.40x = 581,131,932.07
  5. Step 5: Solve for x
    x = 581,131,932.07/27,750.40
  6. Step 6: Final answer
    x = 20,941.39

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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.