Home / 22,639.66-31,239.42-12,568.19

Finding the Fourth Proportional to 22,639.66, 31,239.42 and 12,568.19

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Solution

The fourth proportional to 22,639.66, 31,239.42 and 12,568.19 is: 17,342.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.66 : 31,239.42 = 12,568.19 : x
  2. Step 2: Convert to fraction form
    22,639.66/31,239.42 = 12,568.19/x
  3. Step 3: Cross multiply
    22,639.66x = 31,239.42 × 12,568.19
  4. Step 4: Simplify right side
    22,639.66x = 392,622,841.75
  5. Step 5: Solve for x
    x = 392,622,841.75/22,639.66
  6. Step 6: Final answer
    x = 17,342.26

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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.