Home / 28,338.12-42,480.54-9,605.08

Finding the Fourth Proportional to 28,338.12, 42,480.54 and 9,605.08

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Solution

The fourth proportional to 28,338.12, 42,480.54 and 9,605.08 is: 14,398.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.12 : 42,480.54 = 9,605.08 : x
  2. Step 2: Convert to fraction form
    28,338.12/42,480.54 = 9,605.08/x
  3. Step 3: Cross multiply
    28,338.12x = 42,480.54 × 9,605.08
  4. Step 4: Simplify right side
    28,338.12x = 408,028,985.14
  5. Step 5: Solve for x
    x = 408,028,985.14/28,338.12
  6. Step 6: Final answer
    x = 14,398.59

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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.