Home / 42,218.56-63,336-12,633.84

Finding the Fourth Proportional to 42,218.56, 63,336 and 12,633.84

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Solution

The fourth proportional to 42,218.56, 63,336 and 12,633.84 is: 18,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,218.56 : 63,336 = 12,633.84 : x
  2. Step 2: Convert to fraction form
    42,218.56/63,336 = 12,633.84/x
  3. Step 3: Cross multiply
    42,218.56x = 63,336 × 12,633.84
  4. Step 4: Simplify right side
    42,218.56x = 800,176,890.24
  5. Step 5: Solve for x
    x = 800,176,890.24/42,218.56
  6. Step 6: Final answer
    x = 18,953.20

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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.