Home / 25,380.75-35,041.32-16,309.79

Finding the Fourth Proportional to 25,380.75, 35,041.32 and 16,309.79

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Solution

The fourth proportional to 25,380.75, 35,041.32 and 16,309.79 is: 22,517.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,380.75 : 35,041.32 = 16,309.79 : x
  2. Step 2: Convert to fraction form
    25,380.75/35,041.32 = 16,309.79/x
  3. Step 3: Cross multiply
    25,380.75x = 35,041.32 × 16,309.79
  4. Step 4: Simplify right side
    25,380.75x = 571,516,570.52
  5. Step 5: Solve for x
    x = 571,516,570.52/25,380.75
  6. Step 6: Final answer
    x = 22,517.72

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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.