Home / 42,285.18-63,422.73-11,122.86

Finding the Fourth Proportional to 42,285.18, 63,422.73 and 11,122.86

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Solution

The fourth proportional to 42,285.18, 63,422.73 and 11,122.86 is: 16,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,285.18 : 63,422.73 = 11,122.86 : x
  2. Step 2: Convert to fraction form
    42,285.18/63,422.73 = 11,122.86/x
  3. Step 3: Cross multiply
    42,285.18x = 63,422.73 × 11,122.86
  4. Step 4: Simplify right side
    42,285.18x = 705,442,146.61
  5. Step 5: Solve for x
    x = 705,442,146.61/42,285.18
  6. Step 6: Final answer
    x = 16,682.96

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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.