Home / 22,258.79-30,716.18-12,187.05

Finding the Fourth Proportional to 22,258.79, 30,716.18 and 12,187.05

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Solution

The fourth proportional to 22,258.79, 30,716.18 and 12,187.05 is: 16,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.79 : 30,716.18 = 12,187.05 : x
  2. Step 2: Convert to fraction form
    22,258.79/30,716.18 = 12,187.05/x
  3. Step 3: Cross multiply
    22,258.79x = 30,716.18 × 12,187.05
  4. Step 4: Simplify right side
    22,258.79x = 374,339,491.05
  5. Step 5: Solve for x
    x = 374,339,491.05/22,258.79
  6. Step 6: Final answer
    x = 16,817.60

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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.