Home / 22,182.31-30,615.10-14,107.55

Finding the Fourth Proportional to 22,182.31, 30,615.10 and 14,107.55

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Solution

The fourth proportional to 22,182.31, 30,615.10 and 14,107.55 is: 19,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,182.31 : 30,615.10 = 14,107.55 : x
  2. Step 2: Convert to fraction form
    22,182.31/30,615.10 = 14,107.55/x
  3. Step 3: Cross multiply
    22,182.31x = 30,615.10 × 14,107.55
  4. Step 4: Simplify right side
    22,182.31x = 431,903,918.56
  5. Step 5: Solve for x
    x = 431,903,918.56/22,182.31
  6. Step 6: Final answer
    x = 19,470.65

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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.