Home / 25,920.30-35,776.38-16,989.42

Finding the Fourth Proportional to 25,920.30, 35,776.38 and 16,989.42

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Solution

The fourth proportional to 25,920.30, 35,776.38 and 16,989.42 is: 23,449.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.30 : 35,776.38 = 16,989.42 : x
  2. Step 2: Convert to fraction form
    25,920.30/35,776.38 = 16,989.42/x
  3. Step 3: Cross multiply
    25,920.30x = 35,776.38 × 16,989.42
  4. Step 4: Simplify right side
    25,920.30x = 607,819,945.90
  5. Step 5: Solve for x
    x = 607,819,945.90/25,920.30
  6. Step 6: Final answer
    x = 23,449.57

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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.