Home / 38,182.56-57,260.16-13,215.90

Finding the Fourth Proportional to 38,182.56, 57,260.16 and 13,215.90

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Solution

The fourth proportional to 38,182.56, 57,260.16 and 13,215.90 is: 19,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,182.56 : 57,260.16 = 13,215.90 : x
  2. Step 2: Convert to fraction form
    38,182.56/57,260.16 = 13,215.90/x
  3. Step 3: Cross multiply
    38,182.56x = 57,260.16 × 13,215.90
  4. Step 4: Simplify right side
    38,182.56x = 756,744,548.54
  5. Step 5: Solve for x
    x = 756,744,548.54/38,182.56
  6. Step 6: Final answer
    x = 19,819.12

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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.