Home / 22,209.66-30,641.90-13,258.76

Finding the Fourth Proportional to 22,209.66, 30,641.90 and 13,258.76

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Solution

The fourth proportional to 22,209.66, 30,641.90 and 13,258.76 is: 18,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,209.66 : 30,641.90 = 13,258.76 : x
  2. Step 2: Convert to fraction form
    22,209.66/30,641.90 = 13,258.76/x
  3. Step 3: Cross multiply
    22,209.66x = 30,641.90 × 13,258.76
  4. Step 4: Simplify right side
    22,209.66x = 406,273,378.54
  5. Step 5: Solve for x
    x = 406,273,378.54/22,209.66
  6. Step 6: Final answer
    x = 18,292.64

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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.