Home / 38,283.88-57,425.82-11,988.76

Finding the Fourth Proportional to 38,283.88, 57,425.82 and 11,988.76

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Solution

The fourth proportional to 38,283.88, 57,425.82 and 11,988.76 is: 17,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,283.88 : 57,425.82 = 11,988.76 : x
  2. Step 2: Convert to fraction form
    38,283.88/57,425.82 = 11,988.76/x
  3. Step 3: Cross multiply
    38,283.88x = 57,425.82 × 11,988.76
  4. Step 4: Simplify right side
    38,283.88x = 688,464,373.78
  5. Step 5: Solve for x
    x = 688,464,373.78/38,283.88
  6. Step 6: Final answer
    x = 17,983.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.