Home / 28,930.70-43,398.45-9,208.70

Finding the Fourth Proportional to 28,930.70, 43,398.45 and 9,208.70

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Solution

The fourth proportional to 28,930.70, 43,398.45 and 9,208.70 is: 13,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.70 : 43,398.45 = 9,208.70 : x
  2. Step 2: Convert to fraction form
    28,930.70/43,398.45 = 9,208.70/x
  3. Step 3: Cross multiply
    28,930.70x = 43,398.45 × 9,208.70
  4. Step 4: Simplify right side
    28,930.70x = 399,643,306.52
  5. Step 5: Solve for x
    x = 399,643,306.52/28,930.70
  6. Step 6: Final answer
    x = 13,813.81

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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.