Home / 20,482.12-30,718.32-5,691.52

Finding the Fourth Proportional to 20,482.12, 30,718.32 and 5,691.52

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Solution

The fourth proportional to 20,482.12, 30,718.32 and 5,691.52 is: 8,535.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.12 : 30,718.32 = 5,691.52 : x
  2. Step 2: Convert to fraction form
    20,482.12/30,718.32 = 5,691.52/x
  3. Step 3: Cross multiply
    20,482.12x = 30,718.32 × 5,691.52
  4. Step 4: Simplify right side
    20,482.12x = 174,833,932.65
  5. Step 5: Solve for x
    x = 174,833,932.65/20,482.12
  6. Step 6: Final answer
    x = 8,535.93

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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.