Home / 18,201.27-25,054.59-15,691.69

Finding the Fourth Proportional to 18,201.27, 25,054.59 and 15,691.69

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Solution

The fourth proportional to 18,201.27, 25,054.59 and 15,691.69 is: 21,600.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.27 : 25,054.59 = 15,691.69 : x
  2. Step 2: Convert to fraction form
    18,201.27/25,054.59 = 15,691.69/x
  3. Step 3: Cross multiply
    18,201.27x = 25,054.59 × 15,691.69
  4. Step 4: Simplify right side
    18,201.27x = 393,148,859.36
  5. Step 5: Solve for x
    x = 393,148,859.36/18,201.27
  6. Step 6: Final answer
    x = 21,600.08

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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.