Home / 25,705.31-35,458.54-15,092.90

Finding the Fourth Proportional to 25,705.31, 35,458.54 and 15,092.90

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Solution

The fourth proportional to 25,705.31, 35,458.54 and 15,092.90 is: 20,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.31 : 35,458.54 = 15,092.90 : x
  2. Step 2: Convert to fraction form
    25,705.31/35,458.54 = 15,092.90/x
  3. Step 3: Cross multiply
    25,705.31x = 35,458.54 × 15,092.90
  4. Step 4: Simplify right side
    25,705.31x = 535,172,021.07
  5. Step 5: Solve for x
    x = 535,172,021.07/25,705.31
  6. Step 6: Final answer
    x = 20,819.51

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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.