Home / 25,866.51-35,694.75-15,811.77

Finding the Fourth Proportional to 25,866.51, 35,694.75 and 15,811.77

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Solution

The fourth proportional to 25,866.51, 35,694.75 and 15,811.77 is: 21,819.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,866.51 : 35,694.75 = 15,811.77 : x
  2. Step 2: Convert to fraction form
    25,866.51/35,694.75 = 15,811.77/x
  3. Step 3: Cross multiply
    25,866.51x = 35,694.75 × 15,811.77
  4. Step 4: Simplify right side
    25,866.51x = 564,397,370.36
  5. Step 5: Solve for x
    x = 564,397,370.36/25,866.51
  6. Step 6: Final answer
    x = 21,819.62

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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.