Home / 25,871.92-35,695.22-15,109.03

Finding the Fourth Proportional to 25,871.92, 35,695.22 and 15,109.03

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Solution

The fourth proportional to 25,871.92, 35,695.22 and 15,109.03 is: 20,845.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.92 : 35,695.22 = 15,109.03 : x
  2. Step 2: Convert to fraction form
    25,871.92/35,695.22 = 15,109.03/x
  3. Step 3: Cross multiply
    25,871.92x = 35,695.22 × 15,109.03
  4. Step 4: Simplify right side
    25,871.92x = 539,320,149.84
  5. Step 5: Solve for x
    x = 539,320,149.84/25,871.92
  6. Step 6: Final answer
    x = 20,845.77

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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.