Home / 42,393.28-63,589.88-11,228.54

Finding the Fourth Proportional to 42,393.28, 63,589.88 and 11,228.54

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Solution

The fourth proportional to 42,393.28, 63,589.88 and 11,228.54 is: 16,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,393.28 : 63,589.88 = 11,228.54 : x
  2. Step 2: Convert to fraction form
    42,393.28/63,589.88 = 11,228.54/x
  3. Step 3: Cross multiply
    42,393.28x = 63,589.88 × 11,228.54
  4. Step 4: Simplify right side
    42,393.28x = 714,021,511.18
  5. Step 5: Solve for x
    x = 714,021,511.18/42,393.28
  6. Step 6: Final answer
    x = 16,842.80

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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.