Home / 42,449.26-63,576.92-20,278.32

Finding the Fourth Proportional to 42,449.26, 63,576.92 and 20,278.32

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Solution

The fourth proportional to 42,449.26, 63,576.92 and 20,278.32 is: 30,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,449.26 : 63,576.92 = 20,278.32 : x
  2. Step 2: Convert to fraction form
    42,449.26/63,576.92 = 20,278.32/x
  3. Step 3: Cross multiply
    42,449.26x = 63,576.92 × 20,278.32
  4. Step 4: Simplify right side
    42,449.26x = 1,289,233,128.37
  5. Step 5: Solve for x
    x = 1,289,233,128.37/42,449.26
  6. Step 6: Final answer
    x = 30,371.16

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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.