Home / 21,277.06-31,930.18-7,426.06

Finding the Fourth Proportional to 21,277.06, 31,930.18 and 7,426.06

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Solution

The fourth proportional to 21,277.06, 31,930.18 and 7,426.06 is: 11,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.06 : 31,930.18 = 7,426.06 : x
  2. Step 2: Convert to fraction form
    21,277.06/31,930.18 = 7,426.06/x
  3. Step 3: Cross multiply
    21,277.06x = 31,930.18 × 7,426.06
  4. Step 4: Simplify right side
    21,277.06x = 237,115,432.49
  5. Step 5: Solve for x
    x = 237,115,432.49/21,277.06
  6. Step 6: Final answer
    x = 11,144.18

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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.