Home / 22,639.79-31,246.65-12,571.46

Finding the Fourth Proportional to 22,639.79, 31,246.65 and 12,571.46

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Solution

The fourth proportional to 22,639.79, 31,246.65 and 12,571.46 is: 17,350.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.79 : 31,246.65 = 12,571.46 : x
  2. Step 2: Convert to fraction form
    22,639.79/31,246.65 = 12,571.46/x
  3. Step 3: Cross multiply
    22,639.79x = 31,246.65 × 12,571.46
  4. Step 4: Simplify right side
    22,639.79x = 392,816,010.61
  5. Step 5: Solve for x
    x = 392,816,010.61/22,639.79
  6. Step 6: Final answer
    x = 17,350.69

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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.