Home / 31,819.90-43,891.29-19,549.93

Finding the Fourth Proportional to 31,819.90, 43,891.29 and 19,549.93

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Solution

The fourth proportional to 31,819.90, 43,891.29 and 19,549.93 is: 26,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.90 : 43,891.29 = 19,549.93 : x
  2. Step 2: Convert to fraction form
    31,819.90/43,891.29 = 19,549.93/x
  3. Step 3: Cross multiply
    31,819.90x = 43,891.29 × 19,549.93
  4. Step 4: Simplify right side
    31,819.90x = 858,071,647.11
  5. Step 5: Solve for x
    x = 858,071,647.11/31,819.90
  6. Step 6: Final answer
    x = 26,966.51

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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.