Home / 15,935.72-23,907.27-5,405.18

Finding the Fourth Proportional to 15,935.72, 23,907.27 and 5,405.18

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Solution

The fourth proportional to 15,935.72, 23,907.27 and 5,405.18 is: 8,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,935.72 : 23,907.27 = 5,405.18 : x
  2. Step 2: Convert to fraction form
    15,935.72/23,907.27 = 5,405.18/x
  3. Step 3: Cross multiply
    15,935.72x = 23,907.27 × 5,405.18
  4. Step 4: Simplify right side
    15,935.72x = 129,223,097.66
  5. Step 5: Solve for x
    x = 129,223,097.66/15,935.72
  6. Step 6: Final answer
    x = 8,109.02

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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.