Home / 29,288.87-40,418.56-15,860.12

Finding the Fourth Proportional to 29,288.87, 40,418.56 and 15,860.12

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Solution

The fourth proportional to 29,288.87, 40,418.56 and 15,860.12 is: 21,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.87 : 40,418.56 = 15,860.12 : x
  2. Step 2: Convert to fraction form
    29,288.87/40,418.56 = 15,860.12/x
  3. Step 3: Cross multiply
    29,288.87x = 40,418.56 × 15,860.12
  4. Step 4: Simplify right side
    29,288.87x = 641,043,251.48
  5. Step 5: Solve for x
    x = 641,043,251.48/29,288.87
  6. Step 6: Final answer
    x = 21,886.93

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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.