Home / 31,028.65-42,819.26-16,881.48

Finding the Fourth Proportional to 31,028.65, 42,819.26 and 16,881.48

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Solution

The fourth proportional to 31,028.65, 42,819.26 and 16,881.48 is: 23,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,028.65 : 42,819.26 = 16,881.48 : x
  2. Step 2: Convert to fraction form
    31,028.65/42,819.26 = 16,881.48/x
  3. Step 3: Cross multiply
    31,028.65x = 42,819.26 × 16,881.48
  4. Step 4: Simplify right side
    31,028.65x = 722,852,396.90
  5. Step 5: Solve for x
    x = 722,852,396.90/31,028.65
  6. Step 6: Final answer
    x = 23,296.29

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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.