Home / 15,415.38-23,112.54-4,881.87

Finding the Fourth Proportional to 15,415.38, 23,112.54 and 4,881.87

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Solution

The fourth proportional to 15,415.38, 23,112.54 and 4,881.87 is: 7,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.38 : 23,112.54 = 4,881.87 : x
  2. Step 2: Convert to fraction form
    15,415.38/23,112.54 = 4,881.87/x
  3. Step 3: Cross multiply
    15,415.38x = 23,112.54 × 4,881.87
  4. Step 4: Simplify right side
    15,415.38x = 112,832,415.65
  5. Step 5: Solve for x
    x = 112,832,415.65/15,415.38
  6. Step 6: Final answer
    x = 7,319.47

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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.