Home / 20,079.23-30,119.36-6,752.72

Finding the Fourth Proportional to 20,079.23, 30,119.36 and 6,752.72

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Solution

The fourth proportional to 20,079.23, 30,119.36 and 6,752.72 is: 10,129.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.23 : 30,119.36 = 6,752.72 : x
  2. Step 2: Convert to fraction form
    20,079.23/30,119.36 = 6,752.72/x
  3. Step 3: Cross multiply
    20,079.23x = 30,119.36 × 6,752.72
  4. Step 4: Simplify right side
    20,079.23x = 203,387,646.19
  5. Step 5: Solve for x
    x = 203,387,646.19/20,079.23
  6. Step 6: Final answer
    x = 10,129.26

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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.