Home / 25,527.76-38,119.57-20,856.97

Finding the Fourth Proportional to 25,527.76, 38,119.57 and 20,856.97

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Solution

The fourth proportional to 25,527.76, 38,119.57 and 20,856.97 is: 31,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,527.76 : 38,119.57 = 20,856.97 : x
  2. Step 2: Convert to fraction form
    25,527.76/38,119.57 = 20,856.97/x
  3. Step 3: Cross multiply
    25,527.76x = 38,119.57 × 20,856.97
  4. Step 4: Simplify right side
    25,527.76x = 795,058,727.90
  5. Step 5: Solve for x
    x = 795,058,727.90/25,527.76
  6. Step 6: Final answer
    x = 31,144.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.