Home / 21,296.52-31,912.38-15,069.24

Finding the Fourth Proportional to 21,296.52, 31,912.38 and 15,069.24

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Solution

The fourth proportional to 21,296.52, 31,912.38 and 15,069.24 is: 22,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296.52 : 31,912.38 = 15,069.24 : x
  2. Step 2: Convert to fraction form
    21,296.52/31,912.38 = 15,069.24/x
  3. Step 3: Cross multiply
    21,296.52x = 31,912.38 × 15,069.24
  4. Step 4: Simplify right side
    21,296.52x = 480,895,313.19
  5. Step 5: Solve for x
    x = 480,895,313.19/21,296.52
  6. Step 6: Final answer
    x = 22,580.93

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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.