Home / 22,258.76-30,717.16-12,187.28

Finding the Fourth Proportional to 22,258.76, 30,717.16 and 12,187.28

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Solution

The fourth proportional to 22,258.76, 30,717.16 and 12,187.28 is: 16,818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.76 : 30,717.16 = 12,187.28 : x
  2. Step 2: Convert to fraction form
    22,258.76/30,717.16 = 12,187.28/x
  3. Step 3: Cross multiply
    22,258.76x = 30,717.16 × 12,187.28
  4. Step 4: Simplify right side
    22,258.76x = 374,358,629.72
  5. Step 5: Solve for x
    x = 374,358,629.72/22,258.76
  6. Step 6: Final answer
    x = 16,818.49

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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.