Home / 22,177.81-30,605.38-15,116.57

Finding the Fourth Proportional to 22,177.81, 30,605.38 and 15,116.57

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Solution

The fourth proportional to 22,177.81, 30,605.38 and 15,116.57 is: 20,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,177.81 : 30,605.38 = 15,116.57 : x
  2. Step 2: Convert to fraction form
    22,177.81/30,605.38 = 15,116.57/x
  3. Step 3: Cross multiply
    22,177.81x = 30,605.38 × 15,116.57
  4. Step 4: Simplify right side
    22,177.81x = 462,648,369.15
  5. Step 5: Solve for x
    x = 462,648,369.15/22,177.81
  6. Step 6: Final answer
    x = 20,860.87

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.