Home / 40,929.20-61,394.16-14,615.54

Finding the Fourth Proportional to 40,929.20, 61,394.16 and 14,615.54

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Solution

The fourth proportional to 40,929.20, 61,394.16 and 14,615.54 is: 21,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,929.20 : 61,394.16 = 14,615.54 : x
  2. Step 2: Convert to fraction form
    40,929.20/61,394.16 = 14,615.54/x
  3. Step 3: Cross multiply
    40,929.20x = 61,394.16 × 14,615.54
  4. Step 4: Simplify right side
    40,929.20x = 897,308,801.25
  5. Step 5: Solve for x
    x = 897,308,801.25/40,929.20
  6. Step 6: Final answer
    x = 21,923.44

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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.