Home / 28,681.11-43,027.75-8,961.16

Finding the Fourth Proportional to 28,681.11, 43,027.75 and 8,961.16

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Solution

The fourth proportional to 28,681.11, 43,027.75 and 8,961.16 is: 13,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.11 : 43,027.75 = 8,961.16 : x
  2. Step 2: Convert to fraction form
    28,681.11/43,027.75 = 8,961.16/x
  3. Step 3: Cross multiply
    28,681.11x = 43,027.75 × 8,961.16
  4. Step 4: Simplify right side
    28,681.11x = 385,578,422.22
  5. Step 5: Solve for x
    x = 385,578,422.22/28,681.11
  6. Step 6: Final answer
    x = 13,443.63

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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.