Home / 63,428.37-95,144.12-21,309.92

Finding the Fourth Proportional to 63,428.37, 95,144.12 and 21,309.92

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Solution

The fourth proportional to 63,428.37, 95,144.12 and 21,309.92 is: 31,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,428.37 : 95,144.12 = 21,309.92 : x
  2. Step 2: Convert to fraction form
    63,428.37/95,144.12 = 21,309.92/x
  3. Step 3: Cross multiply
    63,428.37x = 95,144.12 × 21,309.92
  4. Step 4: Simplify right side
    63,428.37x = 2,027,513,440.10
  5. Step 5: Solve for x
    x = 2,027,513,440.10/63,428.37
  6. Step 6: Final answer
    x = 31,965.41

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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.