Home / 25,722.56-35,498.45-15,115.61

Finding the Fourth Proportional to 25,722.56, 35,498.45 and 15,115.61

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Solution

The fourth proportional to 25,722.56, 35,498.45 and 15,115.61 is: 20,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,722.56 : 35,498.45 = 15,115.61 : x
  2. Step 2: Convert to fraction form
    25,722.56/35,498.45 = 15,115.61/x
  3. Step 3: Cross multiply
    25,722.56x = 35,498.45 × 15,115.61
  4. Step 4: Simplify right side
    25,722.56x = 536,580,852.34
  5. Step 5: Solve for x
    x = 536,580,852.34/25,722.56
  6. Step 6: Final answer
    x = 20,860.32

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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.