Home / 42,273.96-63,405.18-18,894.12

Finding the Fourth Proportional to 42,273.96, 63,405.18 and 18,894.12

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Solution

The fourth proportional to 42,273.96, 63,405.18 and 18,894.12 is: 28,338.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,273.96 : 63,405.18 = 18,894.12 : x
  2. Step 2: Convert to fraction form
    42,273.96/63,405.18 = 18,894.12/x
  3. Step 3: Cross multiply
    42,273.96x = 63,405.18 × 18,894.12
  4. Step 4: Simplify right side
    42,273.96x = 1,197,985,079.54
  5. Step 5: Solve for x
    x = 1,197,985,079.54/42,273.96
  6. Step 6: Final answer
    x = 28,338.61

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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.