Home / 25,875.03-35,711.43-15,809.31

Finding the Fourth Proportional to 25,875.03, 35,711.43 and 15,809.31

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Solution

The fourth proportional to 25,875.03, 35,711.43 and 15,809.31 is: 21,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,875.03 : 35,711.43 = 15,809.31 : x
  2. Step 2: Convert to fraction form
    25,875.03/35,711.43 = 15,809.31/x
  3. Step 3: Cross multiply
    25,875.03x = 35,711.43 × 15,809.31
  4. Step 4: Simplify right side
    25,875.03x = 564,573,067.41
  5. Step 5: Solve for x
    x = 564,573,067.41/25,875.03
  6. Step 6: Final answer
    x = 21,819.22

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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.