Home / 21,376.10-32,035.91-15,472.72

Finding the Fourth Proportional to 21,376.10, 32,035.91 and 15,472.72

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Solution

The fourth proportional to 21,376.10, 32,035.91 and 15,472.72 is: 23,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.10 : 32,035.91 = 15,472.72 : x
  2. Step 2: Convert to fraction form
    21,376.10/32,035.91 = 15,472.72/x
  3. Step 3: Cross multiply
    21,376.10x = 32,035.91 × 15,472.72
  4. Step 4: Simplify right side
    21,376.10x = 495,682,628.06
  5. Step 5: Solve for x
    x = 495,682,628.06/21,376.10
  6. Step 6: Final answer
    x = 23,188.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.