Home / 18,333.59-25,253.91-15,348.33

Finding the Fourth Proportional to 18,333.59, 25,253.91 and 15,348.33

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Solution

The fourth proportional to 18,333.59, 25,253.91 and 15,348.33 is: 21,141.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.59 : 25,253.91 = 15,348.33 : x
  2. Step 2: Convert to fraction form
    18,333.59/25,253.91 = 15,348.33/x
  3. Step 3: Cross multiply
    18,333.59x = 25,253.91 × 15,348.33
  4. Step 4: Simplify right side
    18,333.59x = 387,605,344.47
  5. Step 5: Solve for x
    x = 387,605,344.47/18,333.59
  6. Step 6: Final answer
    x = 21,141.82

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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.