Home / 40,833.20-61,235.40-18,657.20

Finding the Fourth Proportional to 40,833.20, 61,235.40 and 18,657.20

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Solution

The fourth proportional to 40,833.20, 61,235.40 and 18,657.20 is: 27,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,833.20 : 61,235.40 = 18,657.20 : x
  2. Step 2: Convert to fraction form
    40,833.20/61,235.40 = 18,657.20/x
  3. Step 3: Cross multiply
    40,833.20x = 61,235.40 × 18,657.20
  4. Step 4: Simplify right side
    40,833.20x = 1,142,481,104.88
  5. Step 5: Solve for x
    x = 1,142,481,104.88/40,833.20
  6. Step 6: Final answer
    x = 27,979.22

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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.