Home / 28,425.25-39,228.06-15,850

Finding the Fourth Proportional to 28,425.25, 39,228.06 and 15,850

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Solution

The fourth proportional to 28,425.25, 39,228.06 and 15,850 is: 21,873.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.25 : 39,228.06 = 15,850 : x
  2. Step 2: Convert to fraction form
    28,425.25/39,228.06 = 15,850/x
  3. Step 3: Cross multiply
    28,425.25x = 39,228.06 × 15,850
  4. Step 4: Simplify right side
    28,425.25x = 621,764,751
  5. Step 5: Solve for x
    x = 621,764,751/28,425.25
  6. Step 6: Final answer
    x = 21,873.68

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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.