Home / 20,326.60-30,499.49-7,185.16

Finding the Fourth Proportional to 20,326.60, 30,499.49 and 7,185.16

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Solution

The fourth proportional to 20,326.60, 30,499.49 and 7,185.16 is: 10,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.60 : 30,499.49 = 7,185.16 : x
  2. Step 2: Convert to fraction form
    20,326.60/30,499.49 = 7,185.16/x
  3. Step 3: Cross multiply
    20,326.60x = 30,499.49 × 7,185.16
  4. Step 4: Simplify right side
    20,326.60x = 219,143,715.57
  5. Step 5: Solve for x
    x = 219,143,715.57/20,326.60
  6. Step 6: Final answer
    x = 10,781.13

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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.