Home / 20,062.72-30,080.94-10,188.28

Finding the Fourth Proportional to 20,062.72, 30,080.94 and 10,188.28

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Solution

The fourth proportional to 20,062.72, 30,080.94 and 10,188.28 is: 15,275.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.72 : 30,080.94 = 10,188.28 : x
  2. Step 2: Convert to fraction form
    20,062.72/30,080.94 = 10,188.28/x
  3. Step 3: Cross multiply
    20,062.72x = 30,080.94 × 10,188.28
  4. Step 4: Simplify right side
    20,062.72x = 306,473,039.38
  5. Step 5: Solve for x
    x = 306,473,039.38/20,062.72
  6. Step 6: Final answer
    x = 15,275.75

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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.