Home / 42,362.78-63,502.85-20,170.19

Finding the Fourth Proportional to 42,362.78, 63,502.85 and 20,170.19

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Solution

The fourth proportional to 42,362.78, 63,502.85 and 20,170.19 is: 30,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,362.78 : 63,502.85 = 20,170.19 : x
  2. Step 2: Convert to fraction form
    42,362.78/63,502.85 = 20,170.19/x
  3. Step 3: Cross multiply
    42,362.78x = 63,502.85 × 20,170.19
  4. Step 4: Simplify right side
    42,362.78x = 1,280,864,449.19
  5. Step 5: Solve for x
    x = 1,280,864,449.19/42,362.78
  6. Step 6: Final answer
    x = 30,235.61

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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.