Home / 31,902.72-44,028.30-18,474.21

Finding the Fourth Proportional to 31,902.72, 44,028.30 and 18,474.21

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Solution

The fourth proportional to 31,902.72, 44,028.30 and 18,474.21 is: 25,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.72 : 44,028.30 = 18,474.21 : x
  2. Step 2: Convert to fraction form
    31,902.72/44,028.30 = 18,474.21/x
  3. Step 3: Cross multiply
    31,902.72x = 44,028.30 × 18,474.21
  4. Step 4: Simplify right side
    31,902.72x = 813,387,967.77
  5. Step 5: Solve for x
    x = 813,387,967.77/31,902.72
  6. Step 6: Final answer
    x = 25,495.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.