Home / 20,154.97-30,232.53-6,115.12

Finding the Fourth Proportional to 20,154.97, 30,232.53 and 6,115.12

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Solution

The fourth proportional to 20,154.97, 30,232.53 and 6,115.12 is: 9,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.97 : 30,232.53 = 6,115.12 : x
  2. Step 2: Convert to fraction form
    20,154.97/30,232.53 = 6,115.12/x
  3. Step 3: Cross multiply
    20,154.97x = 30,232.53 × 6,115.12
  4. Step 4: Simplify right side
    20,154.97x = 184,875,422.16
  5. Step 5: Solve for x
    x = 184,875,422.16/20,154.97
  6. Step 6: Final answer
    x = 9,172.70

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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.