Home / 20,182.56-30,254.34-10,326.48

Finding the Fourth Proportional to 20,182.56, 30,254.34 and 10,326.48

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Solution

The fourth proportional to 20,182.56, 30,254.34 and 10,326.48 is: 15,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.56 : 30,254.34 = 10,326.48 : x
  2. Step 2: Convert to fraction form
    20,182.56/30,254.34 = 10,326.48/x
  3. Step 3: Cross multiply
    20,182.56x = 30,254.34 × 10,326.48
  4. Step 4: Simplify right side
    20,182.56x = 312,420,836.92
  5. Step 5: Solve for x
    x = 312,420,836.92/20,182.56
  6. Step 6: Final answer
    x = 15,479.74

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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.