Home / 15,555.80-23,333.69-3,869.02

Finding the Fourth Proportional to 15,555.80, 23,333.69 and 3,869.02

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Solution

The fourth proportional to 15,555.80, 23,333.69 and 3,869.02 is: 5,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.80 : 23,333.69 = 3,869.02 : x
  2. Step 2: Convert to fraction form
    15,555.80/23,333.69 = 3,869.02/x
  3. Step 3: Cross multiply
    15,555.80x = 23,333.69 × 3,869.02
  4. Step 4: Simplify right side
    15,555.80x = 90,278,464.62
  5. Step 5: Solve for x
    x = 90,278,464.62/15,555.80
  6. Step 6: Final answer
    x = 5,803.52

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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.