Home / 28,317.06-42,476.40-7,540.56

Finding the Fourth Proportional to 28,317.06, 42,476.40 and 7,540.56

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Solution

The fourth proportional to 28,317.06, 42,476.40 and 7,540.56 is: 11,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.06 : 42,476.40 = 7,540.56 : x
  2. Step 2: Convert to fraction form
    28,317.06/42,476.40 = 7,540.56/x
  3. Step 3: Cross multiply
    28,317.06x = 42,476.40 × 7,540.56
  4. Step 4: Simplify right side
    28,317.06x = 320,295,842.78
  5. Step 5: Solve for x
    x = 320,295,842.78/28,317.06
  6. Step 6: Final answer
    x = 11,311.06

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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.