Home / 38,780.24-58,082.88-17,960

Finding the Fourth Proportional to 38,780.24, 58,082.88 and 17,960

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Solution

The fourth proportional to 38,780.24, 58,082.88 and 17,960 is: 26,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.24 : 58,082.88 = 17,960 : x
  2. Step 2: Convert to fraction form
    38,780.24/58,082.88 = 17,960/x
  3. Step 3: Cross multiply
    38,780.24x = 58,082.88 × 17,960
  4. Step 4: Simplify right side
    38,780.24x = 1,043,168,524.80
  5. Step 5: Solve for x
    x = 1,043,168,524.80/38,780.24
  6. Step 6: Final answer
    x = 26,899.49

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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.