Home / 22,750.96-31,396.92-12,680.56

Finding the Fourth Proportional to 22,750.96, 31,396.92 and 12,680.56

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Solution

The fourth proportional to 22,750.96, 31,396.92 and 12,680.56 is: 17,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.96 : 31,396.92 = 12,680.56 : x
  2. Step 2: Convert to fraction form
    22,750.96/31,396.92 = 12,680.56/x
  3. Step 3: Cross multiply
    22,750.96x = 31,396.92 × 12,680.56
  4. Step 4: Simplify right side
    22,750.96x = 398,130,527.88
  5. Step 5: Solve for x
    x = 398,130,527.88/22,750.96
  6. Step 6: Final answer
    x = 17,499.50

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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.