Home / 22,382.81-30,887.31-12,310.60

Finding the Fourth Proportional to 22,382.81, 30,887.31 and 12,310.60

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Solution

The fourth proportional to 22,382.81, 30,887.31 and 12,310.60 is: 16,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,382.81 : 30,887.31 = 12,310.60 : x
  2. Step 2: Convert to fraction form
    22,382.81/30,887.31 = 12,310.60/x
  3. Step 3: Cross multiply
    22,382.81x = 30,887.31 × 12,310.60
  4. Step 4: Simplify right side
    22,382.81x = 380,241,318.49
  5. Step 5: Solve for x
    x = 380,241,318.49/22,382.81
  6. Step 6: Final answer
    x = 16,988.10

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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.