Home / 43,280.67-64,928.30-19,906.50

Finding the Fourth Proportional to 43,280.67, 64,928.30 and 19,906.50

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Solution

The fourth proportional to 43,280.67, 64,928.30 and 19,906.50 is: 29,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,280.67 : 64,928.30 = 19,906.50 : x
  2. Step 2: Convert to fraction form
    43,280.67/64,928.30 = 19,906.50/x
  3. Step 3: Cross multiply
    43,280.67x = 64,928.30 × 19,906.50
  4. Step 4: Simplify right side
    43,280.67x = 1,292,495,203.95
  5. Step 5: Solve for x
    x = 1,292,495,203.95/43,280.67
  6. Step 6: Final answer
    x = 29,863.11

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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.