Home / 22,988.74-31,724.48-12,917.18

Finding the Fourth Proportional to 22,988.74, 31,724.48 and 12,917.18

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Solution

The fourth proportional to 22,988.74, 31,724.48 and 12,917.18 is: 17,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,988.74 : 31,724.48 = 12,917.18 : x
  2. Step 2: Convert to fraction form
    22,988.74/31,724.48 = 12,917.18/x
  3. Step 3: Cross multiply
    22,988.74x = 31,724.48 × 12,917.18
  4. Step 4: Simplify right side
    22,988.74x = 409,790,818.57
  5. Step 5: Solve for x
    x = 409,790,818.57/22,988.74
  6. Step 6: Final answer
    x = 17,825.72

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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.