Home / 40,920.72-61,384.80-14,625.60

Finding the Fourth Proportional to 40,920.72, 61,384.80 and 14,625.60

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Solution

The fourth proportional to 40,920.72, 61,384.80 and 14,625.60 is: 21,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,920.72 : 61,384.80 = 14,625.60 : x
  2. Step 2: Convert to fraction form
    40,920.72/61,384.80 = 14,625.60/x
  3. Step 3: Cross multiply
    40,920.72x = 61,384.80 × 14,625.60
  4. Step 4: Simplify right side
    40,920.72x = 897,789,530.88
  5. Step 5: Solve for x
    x = 897,789,530.88/40,920.72
  6. Step 6: Final answer
    x = 21,939.73

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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.