Home / 42,282.18-63,418.23-11,119.86

Finding the Fourth Proportional to 42,282.18, 63,418.23 and 11,119.86

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Solution

The fourth proportional to 42,282.18, 63,418.23 and 11,119.86 is: 16,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,282.18 : 63,418.23 = 11,119.86 : x
  2. Step 2: Convert to fraction form
    42,282.18/63,418.23 = 11,119.86/x
  3. Step 3: Cross multiply
    42,282.18x = 63,418.23 × 11,119.86
  4. Step 4: Simplify right side
    42,282.18x = 705,201,839.05
  5. Step 5: Solve for x
    x = 705,201,839.05/42,282.18
  6. Step 6: Final answer
    x = 16,678.46

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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.