Home / 22,872.57-31,521.21-15,704.67

Finding the Fourth Proportional to 22,872.57, 31,521.21 and 15,704.67

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Solution

The fourth proportional to 22,872.57, 31,521.21 and 15,704.67 is: 21,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,872.57 : 31,521.21 = 15,704.67 : x
  2. Step 2: Convert to fraction form
    22,872.57/31,521.21 = 15,704.67/x
  3. Step 3: Cross multiply
    22,872.57x = 31,521.21 × 15,704.67
  4. Step 4: Simplify right side
    22,872.57x = 495,030,201.05
  5. Step 5: Solve for x
    x = 495,030,201.05/22,872.57
  6. Step 6: Final answer
    x = 21,642.96

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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.