Home / 40,983.20-61,460.40-18,807.20

Finding the Fourth Proportional to 40,983.20, 61,460.40 and 18,807.20

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Solution

The fourth proportional to 40,983.20, 61,460.40 and 18,807.20 is: 28,204.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,983.20 : 61,460.40 = 18,807.20 : x
  2. Step 2: Convert to fraction form
    40,983.20/61,460.40 = 18,807.20/x
  3. Step 3: Cross multiply
    40,983.20x = 61,460.40 × 18,807.20
  4. Step 4: Simplify right side
    40,983.20x = 1,155,898,034.88
  5. Step 5: Solve for x
    x = 1,155,898,034.88/40,983.20
  6. Step 6: Final answer
    x = 28,204.19

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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.