Home / 22,358.12-30,854.82-12,422.76

Finding the Fourth Proportional to 22,358.12, 30,854.82 and 12,422.76

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Solution

The fourth proportional to 22,358.12, 30,854.82 and 12,422.76 is: 17,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,358.12 : 30,854.82 = 12,422.76 : x
  2. Step 2: Convert to fraction form
    22,358.12/30,854.82 = 12,422.76/x
  3. Step 3: Cross multiply
    22,358.12x = 30,854.82 × 12,422.76
  4. Step 4: Simplify right side
    22,358.12x = 383,302,023.70
  5. Step 5: Solve for x
    x = 383,302,023.70/22,358.12
  6. Step 6: Final answer
    x = 17,143.75

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Half scale
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Double scale
Find fourth proportional to 22,359.12, 30,856.20 and 12,423.76
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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.