Home / 22,681.28-34,016.44-8,640.72

Finding the Fourth Proportional to 22,681.28, 34,016.44 and 8,640.72

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Solution

The fourth proportional to 22,681.28, 34,016.44 and 8,640.72 is: 12,958.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,681.28 : 34,016.44 = 8,640.72 : x
  2. Step 2: Convert to fraction form
    22,681.28/34,016.44 = 8,640.72/x
  3. Step 3: Cross multiply
    22,681.28x = 34,016.44 × 8,640.72
  4. Step 4: Simplify right side
    22,681.28x = 293,926,533.44
  5. Step 5: Solve for x
    x = 293,926,533.44/22,681.28
  6. Step 6: Final answer
    x = 12,958.99

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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.