Home / 15,887.62-23,830.44-5,357.20

Finding the Fourth Proportional to 15,887.62, 23,830.44 and 5,357.20

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Solution

The fourth proportional to 15,887.62, 23,830.44 and 5,357.20 is: 8,035.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.62 : 23,830.44 = 5,357.20 : x
  2. Step 2: Convert to fraction form
    15,887.62/23,830.44 = 5,357.20/x
  3. Step 3: Cross multiply
    15,887.62x = 23,830.44 × 5,357.20
  4. Step 4: Simplify right side
    15,887.62x = 127,664,433.17
  5. Step 5: Solve for x
    x = 127,664,433.17/15,887.62
  6. Step 6: Final answer
    x = 8,035.47

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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.