Home / 22,258.40-30,715.88-12,186.59

Finding the Fourth Proportional to 22,258.40, 30,715.88 and 12,186.59

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Solution

The fourth proportional to 22,258.40, 30,715.88 and 12,186.59 is: 16,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.40 : 30,715.88 = 12,186.59 : x
  2. Step 2: Convert to fraction form
    22,258.40/30,715.88 = 12,186.59/x
  3. Step 3: Cross multiply
    22,258.40x = 30,715.88 × 12,186.59
  4. Step 4: Simplify right side
    22,258.40x = 374,321,621.54
  5. Step 5: Solve for x
    x = 374,321,621.54/22,258.40
  6. Step 6: Final answer
    x = 16,817.10

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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.