Home / 22,182.64-30,612-12,751.18

Finding the Fourth Proportional to 22,182.64, 30,612 and 12,751.18

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Solution

The fourth proportional to 22,182.64, 30,612 and 12,751.18 is: 17,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,182.64 : 30,612 = 12,751.18 : x
  2. Step 2: Convert to fraction form
    22,182.64/30,612 = 12,751.18/x
  3. Step 3: Cross multiply
    22,182.64x = 30,612 × 12,751.18
  4. Step 4: Simplify right side
    22,182.64x = 390,339,122.16
  5. Step 5: Solve for x
    x = 390,339,122.16/22,182.64
  6. Step 6: Final answer
    x = 17,596.60

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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.