Home / 28,899.41-43,343.64-9,178.13

Finding the Fourth Proportional to 28,899.41, 43,343.64 and 9,178.13

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Solution

The fourth proportional to 28,899.41, 43,343.64 and 9,178.13 is: 13,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.41 : 43,343.64 = 9,178.13 : x
  2. Step 2: Convert to fraction form
    28,899.41/43,343.64 = 9,178.13/x
  3. Step 3: Cross multiply
    28,899.41x = 43,343.64 × 9,178.13
  4. Step 4: Simplify right side
    28,899.41x = 397,813,670.95
  5. Step 5: Solve for x
    x = 397,813,670.95/28,899.41
  6. Step 6: Final answer
    x = 13,765.46

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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.