Home / 42,485.25-63,727.88-20,231.16

Finding the Fourth Proportional to 42,485.25, 63,727.88 and 20,231.16

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Solution

The fourth proportional to 42,485.25, 63,727.88 and 20,231.16 is: 30,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,485.25 : 63,727.88 = 20,231.16 : x
  2. Step 2: Convert to fraction form
    42,485.25/63,727.88 = 20,231.16/x
  3. Step 3: Cross multiply
    42,485.25x = 63,727.88 × 20,231.16
  4. Step 4: Simplify right side
    42,485.25x = 1,289,288,596.61
  5. Step 5: Solve for x
    x = 1,289,288,596.61/42,485.25
  6. Step 6: Final answer
    x = 30,346.73

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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.