Home / 25,874.92-35,707.51-15,120.42

Finding the Fourth Proportional to 25,874.92, 35,707.51 and 15,120.42

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Solution

The fourth proportional to 25,874.92, 35,707.51 and 15,120.42 is: 20,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,874.92 : 35,707.51 = 15,120.42 : x
  2. Step 2: Convert to fraction form
    25,874.92/35,707.51 = 15,120.42/x
  3. Step 3: Cross multiply
    25,874.92x = 35,707.51 × 15,120.42
  4. Step 4: Simplify right side
    25,874.92x = 539,912,548.35
  5. Step 5: Solve for x
    x = 539,912,548.35/25,874.92
  6. Step 6: Final answer
    x = 20,866.25

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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.