Home / 28,871.17-39,815.17-19,163.46

Finding the Fourth Proportional to 28,871.17, 39,815.17 and 19,163.46

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Solution

The fourth proportional to 28,871.17, 39,815.17 and 19,163.46 is: 26,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.17 : 39,815.17 = 19,163.46 : x
  2. Step 2: Convert to fraction form
    28,871.17/39,815.17 = 19,163.46/x
  3. Step 3: Cross multiply
    28,871.17x = 39,815.17 × 19,163.46
  4. Step 4: Simplify right side
    28,871.17x = 762,996,417.69
  5. Step 5: Solve for x
    x = 762,996,417.69/28,871.17
  6. Step 6: Final answer
    x = 26,427.62

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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.