Home / 25,866.16-35,708.80-20,110.88

Finding the Fourth Proportional to 25,866.16, 35,708.80 and 20,110.88

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Solution

The fourth proportional to 25,866.16, 35,708.80 and 20,110.88 is: 27,763.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,866.16 : 35,708.80 = 20,110.88 : x
  2. Step 2: Convert to fraction form
    25,866.16/35,708.80 = 20,110.88/x
  3. Step 3: Cross multiply
    25,866.16x = 35,708.80 × 20,110.88
  4. Step 4: Simplify right side
    25,866.16x = 718,135,391.74
  5. Step 5: Solve for x
    x = 718,135,391.74/25,866.16
  6. Step 6: Final answer
    x = 27,763.51

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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.