Home / 21,778.14-32,653.17-9,306.30

Finding the Fourth Proportional to 21,778.14, 32,653.17 and 9,306.30

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Solution

The fourth proportional to 21,778.14, 32,653.17 and 9,306.30 is: 13,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.14 : 32,653.17 = 9,306.30 : x
  2. Step 2: Convert to fraction form
    21,778.14/32,653.17 = 9,306.30/x
  3. Step 3: Cross multiply
    21,778.14x = 32,653.17 × 9,306.30
  4. Step 4: Simplify right side
    21,778.14x = 303,880,195.97
  5. Step 5: Solve for x
    x = 303,880,195.97/21,778.14
  6. Step 6: Final answer
    x = 13,953.45

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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.