Home / 28,083.09-42,068.13-13,306.26

Finding the Fourth Proportional to 28,083.09, 42,068.13 and 13,306.26

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Solution

The fourth proportional to 28,083.09, 42,068.13 and 13,306.26 is: 19,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.09 : 42,068.13 = 13,306.26 : x
  2. Step 2: Convert to fraction form
    28,083.09/42,068.13 = 13,306.26/x
  3. Step 3: Cross multiply
    28,083.09x = 42,068.13 × 13,306.26
  4. Step 4: Simplify right side
    28,083.09x = 559,769,198.62
  5. Step 5: Solve for x
    x = 559,769,198.62/28,083.09
  6. Step 6: Final answer
    x = 19,932.61

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1.5x scale

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.