Home / 20,079.96-30,064.32-15,134.64

Finding the Fourth Proportional to 20,079.96, 30,064.32 and 15,134.64

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Solution

The fourth proportional to 20,079.96, 30,064.32 and 15,134.64 is: 22,660.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.96 : 30,064.32 = 15,134.64 : x
  2. Step 2: Convert to fraction form
    20,079.96/30,064.32 = 15,134.64/x
  3. Step 3: Cross multiply
    20,079.96x = 30,064.32 × 15,134.64
  4. Step 4: Simplify right side
    20,079.96x = 455,012,660.04
  5. Step 5: Solve for x
    x = 455,012,660.04/20,079.96
  6. Step 6: Final answer
    x = 22,660.04

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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.