Home / 42,508.08-63,762.24-20,316.42

Finding the Fourth Proportional to 42,508.08, 63,762.24 and 20,316.42

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Solution

The fourth proportional to 42,508.08, 63,762.24 and 20,316.42 is: 30,474.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,508.08 : 63,762.24 = 20,316.42 : x
  2. Step 2: Convert to fraction form
    42,508.08/63,762.24 = 20,316.42/x
  3. Step 3: Cross multiply
    42,508.08x = 63,762.24 × 20,316.42
  4. Step 4: Simplify right side
    42,508.08x = 1,295,420,447.98
  5. Step 5: Solve for x
    x = 1,295,420,447.98/42,508.08
  6. Step 6: Final answer
    x = 30,474.69

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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.