Home / 21,866.07-32,780.42-10,015.87

Finding the Fourth Proportional to 21,866.07, 32,780.42 and 10,015.87

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Solution

The fourth proportional to 21,866.07, 32,780.42 and 10,015.87 is: 15,015.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866.07 : 32,780.42 = 10,015.87 : x
  2. Step 2: Convert to fraction form
    21,866.07/32,780.42 = 10,015.87/x
  3. Step 3: Cross multiply
    21,866.07x = 32,780.42 × 10,015.87
  4. Step 4: Simplify right side
    21,866.07x = 328,324,293.24
  5. Step 5: Solve for x
    x = 328,324,293.24/21,866.07
  6. Step 6: Final answer
    x = 15,015.24

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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.