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Finding the Fourth Proportional to 43,980.95, 65,969.80 and 19,027.28

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Solution

The fourth proportional to 43,980.95, 65,969.80 and 19,027.28 is: 28,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,980.95 : 65,969.80 = 19,027.28 : x
  2. Step 2: Convert to fraction form
    43,980.95/65,969.80 = 19,027.28/x
  3. Step 3: Cross multiply
    43,980.95x = 65,969.80 × 19,027.28
  4. Step 4: Simplify right side
    43,980.95x = 1,255,225,856.14
  5. Step 5: Solve for x
    x = 1,255,225,856.14/43,980.95
  6. Step 6: Final answer
    x = 28,540.22

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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.