Home / 40,918.60-61,385.10-14,638.60

Finding the Fourth Proportional to 40,918.60, 61,385.10 and 14,638.60

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Solution

The fourth proportional to 40,918.60, 61,385.10 and 14,638.60 is: 21,960.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,918.60 : 61,385.10 = 14,638.60 : x
  2. Step 2: Convert to fraction form
    40,918.60/61,385.10 = 14,638.60/x
  3. Step 3: Cross multiply
    40,918.60x = 61,385.10 × 14,638.60
  4. Step 4: Simplify right side
    40,918.60x = 898,591,924.86
  5. Step 5: Solve for x
    x = 898,591,924.86/40,918.60
  6. Step 6: Final answer
    x = 21,960.48

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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.