Home / 25,866.35-35,695.80-15,657.61

Finding the Fourth Proportional to 25,866.35, 35,695.80 and 15,657.61

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Solution

The fourth proportional to 25,866.35, 35,695.80 and 15,657.61 is: 21,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,866.35 : 35,695.80 = 15,657.61 : x
  2. Step 2: Convert to fraction form
    25,866.35/35,695.80 = 15,657.61/x
  3. Step 3: Cross multiply
    25,866.35x = 35,695.80 × 15,657.61
  4. Step 4: Simplify right side
    25,866.35x = 558,910,949.09
  5. Step 5: Solve for x
    x = 558,910,949.09/25,866.35
  6. Step 6: Final answer
    x = 21,607.65

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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.