Home / 21,244.92-31,731.48-19,240.62

Finding the Fourth Proportional to 21,244.92, 31,731.48 and 19,240.62

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Solution

The fourth proportional to 21,244.92, 31,731.48 and 19,240.62 is: 28,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.92 : 31,731.48 = 19,240.62 : x
  2. Step 2: Convert to fraction form
    21,244.92/31,731.48 = 19,240.62/x
  3. Step 3: Cross multiply
    21,244.92x = 31,731.48 × 19,240.62
  4. Step 4: Simplify right side
    21,244.92x = 610,533,348.72
  5. Step 5: Solve for x
    x = 610,533,348.72/21,244.92
  6. Step 6: Final answer
    x = 28,737.85

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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.