Home / 10,020.66-15,028.71-3,781.33

Finding the Fourth Proportional to 10,020.66, 15,028.71 and 3,781.33

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Solution

The fourth proportional to 10,020.66, 15,028.71 and 3,781.33 is: 5,671.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.66 : 15,028.71 = 3,781.33 : x
  2. Step 2: Convert to fraction form
    10,020.66/15,028.71 = 3,781.33/x
  3. Step 3: Cross multiply
    10,020.66x = 15,028.71 × 3,781.33
  4. Step 4: Simplify right side
    10,020.66x = 56,828,460.23
  5. Step 5: Solve for x
    x = 56,828,460.23/10,020.66
  6. Step 6: Final answer
    x = 5,671.13

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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.