Home / 20,126.68-30,189.54-6,275.32

Finding the Fourth Proportional to 20,126.68, 30,189.54 and 6,275.32

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Solution

The fourth proportional to 20,126.68, 30,189.54 and 6,275.32 is: 9,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.68 : 30,189.54 = 6,275.32 : x
  2. Step 2: Convert to fraction form
    20,126.68/30,189.54 = 6,275.32/x
  3. Step 3: Cross multiply
    20,126.68x = 30,189.54 × 6,275.32
  4. Step 4: Simplify right side
    20,126.68x = 189,449,024.15
  5. Step 5: Solve for x
    x = 189,449,024.15/20,126.68
  6. Step 6: Final answer
    x = 9,412.83

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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.