Home / 28,797.12-39,747.45-18,750.66

Finding the Fourth Proportional to 28,797.12, 39,747.45 and 18,750.66

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Solution

The fourth proportional to 28,797.12, 39,747.45 and 18,750.66 is: 25,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,797.12 : 39,747.45 = 18,750.66 : x
  2. Step 2: Convert to fraction form
    28,797.12/39,747.45 = 18,750.66/x
  3. Step 3: Cross multiply
    28,797.12x = 39,747.45 × 18,750.66
  4. Step 4: Simplify right side
    28,797.12x = 745,290,920.82
  5. Step 5: Solve for x
    x = 745,290,920.82/28,797.12
  6. Step 6: Final answer
    x = 25,880.75

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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.