Home / 22,083.64-30,475.54-13,129.39

Finding the Fourth Proportional to 22,083.64, 30,475.54 and 13,129.39

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Solution

The fourth proportional to 22,083.64, 30,475.54 and 13,129.39 is: 18,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,083.64 : 30,475.54 = 13,129.39 : x
  2. Step 2: Convert to fraction form
    22,083.64/30,475.54 = 13,129.39/x
  3. Step 3: Cross multiply
    22,083.64x = 30,475.54 × 13,129.39
  4. Step 4: Simplify right side
    22,083.64x = 400,125,304.63
  5. Step 5: Solve for x
    x = 400,125,304.63/22,083.64
  6. Step 6: Final answer
    x = 18,118.63

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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.