Home / 22,772.11-31,428.25-13,340.67

Finding the Fourth Proportional to 22,772.11, 31,428.25 and 13,340.67

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Solution

The fourth proportional to 22,772.11, 31,428.25 and 13,340.67 is: 18,411.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,772.11 : 31,428.25 = 13,340.67 : x
  2. Step 2: Convert to fraction form
    22,772.11/31,428.25 = 13,340.67/x
  3. Step 3: Cross multiply
    22,772.11x = 31,428.25 × 13,340.67
  4. Step 4: Simplify right side
    22,772.11x = 419,274,012.55
  5. Step 5: Solve for x
    x = 419,274,012.55/22,772.11
  6. Step 6: Final answer
    x = 18,411.73

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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.