Home / 42,493.28-63,739.86-20,239.16

Finding the Fourth Proportional to 42,493.28, 63,739.86 and 20,239.16

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Solution

The fourth proportional to 42,493.28, 63,739.86 and 20,239.16 is: 30,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,493.28 : 63,739.86 = 20,239.16 : x
  2. Step 2: Convert to fraction form
    42,493.28/63,739.86 = 20,239.16/x
  3. Step 3: Cross multiply
    42,493.28x = 63,739.86 × 20,239.16
  4. Step 4: Simplify right side
    42,493.28x = 1,290,041,224.92
  5. Step 5: Solve for x
    x = 1,290,041,224.92/42,493.28
  6. Step 6: Final answer
    x = 30,358.71

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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.