Home / 22,638.39-31,240.84-12,568.29

Finding the Fourth Proportional to 22,638.39, 31,240.84 and 12,568.29

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Solution

The fourth proportional to 22,638.39, 31,240.84 and 12,568.29 is: 17,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.39 : 31,240.84 = 12,568.29 : x
  2. Step 2: Convert to fraction form
    22,638.39/31,240.84 = 12,568.29/x
  3. Step 3: Cross multiply
    22,638.39x = 31,240.84 × 12,568.29
  4. Step 4: Simplify right side
    22,638.39x = 392,643,936.96
  5. Step 5: Solve for x
    x = 392,643,936.96/22,638.39
  6. Step 6: Final answer
    x = 17,344.16

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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.