Home / 38,115.29-57,176.82-13,155.28

Finding the Fourth Proportional to 38,115.29, 57,176.82 and 13,155.28

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Solution

The fourth proportional to 38,115.29, 57,176.82 and 13,155.28 is: 19,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.29 : 57,176.82 = 13,155.28 : x
  2. Step 2: Convert to fraction form
    38,115.29/57,176.82 = 13,155.28/x
  3. Step 3: Cross multiply
    38,115.29x = 57,176.82 × 13,155.28
  4. Step 4: Simplify right side
    38,115.29x = 752,176,933.67
  5. Step 5: Solve for x
    x = 752,176,933.67/38,115.29
  6. Step 6: Final answer
    x = 19,734.26

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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.