Home / 25,148.88-34,690.68-15,722.10

Finding the Fourth Proportional to 25,148.88, 34,690.68 and 15,722.10

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Solution

The fourth proportional to 25,148.88, 34,690.68 and 15,722.10 is: 21,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,148.88 : 34,690.68 = 15,722.10 : x
  2. Step 2: Convert to fraction form
    25,148.88/34,690.68 = 15,722.10/x
  3. Step 3: Cross multiply
    25,148.88x = 34,690.68 × 15,722.10
  4. Step 4: Simplify right side
    25,148.88x = 545,410,340.03
  5. Step 5: Solve for x
    x = 545,410,340.03/25,148.88
  6. Step 6: Final answer
    x = 21,687.26

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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.