Home / 22,660.02-31,270.79-12,589.39

Finding the Fourth Proportional to 22,660.02, 31,270.79 and 12,589.39

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Solution

The fourth proportional to 22,660.02, 31,270.79 and 12,589.39 is: 17,373.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.02 : 31,270.79 = 12,589.39 : x
  2. Step 2: Convert to fraction form
    22,660.02/31,270.79 = 12,589.39/x
  3. Step 3: Cross multiply
    22,660.02x = 31,270.79 × 12,589.39
  4. Step 4: Simplify right side
    22,660.02x = 393,680,046.04
  5. Step 5: Solve for x
    x = 393,680,046.04/22,660.02
  6. Step 6: Final answer
    x = 17,373.34

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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.