Home / 42,418.08-63,587.52-20,220.48

Finding the Fourth Proportional to 42,418.08, 63,587.52 and 20,220.48

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Solution

The fourth proportional to 42,418.08, 63,587.52 and 20,220.48 is: 30,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.08 : 63,587.52 = 20,220.48 : x
  2. Step 2: Convert to fraction form
    42,418.08/63,587.52 = 20,220.48/x
  3. Step 3: Cross multiply
    42,418.08x = 63,587.52 × 20,220.48
  4. Step 4: Simplify right side
    42,418.08x = 1,285,770,176.41
  5. Step 5: Solve for x
    x = 1,285,770,176.41/42,418.08
  6. Step 6: Final answer
    x = 30,311.84

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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.