Home / 28,279.67-42,412.49-9,559.29

Finding the Fourth Proportional to 28,279.67, 42,412.49 and 9,559.29

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Solution

The fourth proportional to 28,279.67, 42,412.49 and 9,559.29 is: 14,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.67 : 42,412.49 = 9,559.29 : x
  2. Step 2: Convert to fraction form
    28,279.67/42,412.49 = 9,559.29/x
  3. Step 3: Cross multiply
    28,279.67x = 42,412.49 × 9,559.29
  4. Step 4: Simplify right side
    28,279.67x = 405,433,079.47
  5. Step 5: Solve for x
    x = 405,433,079.47/28,279.67
  6. Step 6: Final answer
    x = 14,336.56

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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.