Home / 18,540.93-25,561.71-15,342.45

Finding the Fourth Proportional to 18,540.93, 25,561.71 and 15,342.45

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Solution

The fourth proportional to 18,540.93, 25,561.71 and 15,342.45 is: 21,152.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.93 : 25,561.71 = 15,342.45 : x
  2. Step 2: Convert to fraction form
    18,540.93/25,561.71 = 15,342.45/x
  3. Step 3: Cross multiply
    18,540.93x = 25,561.71 × 15,342.45
  4. Step 4: Simplify right side
    18,540.93x = 392,179,161.73
  5. Step 5: Solve for x
    x = 392,179,161.73/18,540.93
  6. Step 6: Final answer
    x = 21,152.07

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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.