Home / 28,429.67-42,656.75-11,793.43

Finding the Fourth Proportional to 28,429.67, 42,656.75 and 11,793.43

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Solution

The fourth proportional to 28,429.67, 42,656.75 and 11,793.43 is: 17,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.67 : 42,656.75 = 11,793.43 : x
  2. Step 2: Convert to fraction form
    28,429.67/42,656.75 = 11,793.43/x
  3. Step 3: Cross multiply
    28,429.67x = 42,656.75 × 11,793.43
  4. Step 4: Simplify right side
    28,429.67x = 503,069,395.15
  5. Step 5: Solve for x
    x = 503,069,395.15/28,429.67
  6. Step 6: Final answer
    x = 17,695.22

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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.