Home / 40,965.88-61,487.34-21,258.40

Finding the Fourth Proportional to 40,965.88, 61,487.34 and 21,258.40

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Solution

The fourth proportional to 40,965.88, 61,487.34 and 21,258.40 is: 31,907.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,965.88 : 61,487.34 = 21,258.40 : x
  2. Step 2: Convert to fraction form
    40,965.88/61,487.34 = 21,258.40/x
  3. Step 3: Cross multiply
    40,965.88x = 61,487.34 × 21,258.40
  4. Step 4: Simplify right side
    40,965.88x = 1,307,122,468.66
  5. Step 5: Solve for x
    x = 1,307,122,468.66/40,965.88
  6. Step 6: Final answer
    x = 31,907.59

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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.