Home / 25,451.56-35,118.66-15,377.32

Finding the Fourth Proportional to 25,451.56, 35,118.66 and 15,377.32

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Solution

The fourth proportional to 25,451.56, 35,118.66 and 15,377.32 is: 21,217.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.56 : 35,118.66 = 15,377.32 : x
  2. Step 2: Convert to fraction form
    25,451.56/35,118.66 = 15,377.32/x
  3. Step 3: Cross multiply
    25,451.56x = 35,118.66 × 15,377.32
  4. Step 4: Simplify right side
    25,451.56x = 540,030,872.79
  5. Step 5: Solve for x
    x = 540,030,872.79/25,451.56
  6. Step 6: Final answer
    x = 21,217.99

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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.