Home / 21,304.56-31,960.95-9,617.79

Finding the Fourth Proportional to 21,304.56, 31,960.95 and 9,617.79

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Solution

The fourth proportional to 21,304.56, 31,960.95 and 9,617.79 is: 14,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.56 : 31,960.95 = 9,617.79 : x
  2. Step 2: Convert to fraction form
    21,304.56/31,960.95 = 9,617.79/x
  3. Step 3: Cross multiply
    21,304.56x = 31,960.95 × 9,617.79
  4. Step 4: Simplify right side
    21,304.56x = 307,393,705.30
  5. Step 5: Solve for x
    x = 307,393,705.30/21,304.56
  6. Step 6: Final answer
    x = 14,428.54

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1.5x scale

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.