Home / 40,686.20-61,039.05-16,980.56

Finding the Fourth Proportional to 40,686.20, 61,039.05 and 16,980.56

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Solution

The fourth proportional to 40,686.20, 61,039.05 and 16,980.56 is: 25,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,686.20 : 61,039.05 = 16,980.56 : x
  2. Step 2: Convert to fraction form
    40,686.20/61,039.05 = 16,980.56/x
  3. Step 3: Cross multiply
    40,686.20x = 61,039.05 × 16,980.56
  4. Step 4: Simplify right side
    40,686.20x = 1,036,477,250.87
  5. Step 5: Solve for x
    x = 1,036,477,250.87/40,686.20
  6. Step 6: Final answer
    x = 25,474.91

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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.