Home / 31,902.21-47,888.07-18,589.68

Finding the Fourth Proportional to 31,902.21, 47,888.07 and 18,589.68

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Solution

The fourth proportional to 31,902.21, 47,888.07 and 18,589.68 is: 27,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.21 : 47,888.07 = 18,589.68 : x
  2. Step 2: Convert to fraction form
    31,902.21/47,888.07 = 18,589.68/x
  3. Step 3: Cross multiply
    31,902.21x = 47,888.07 × 18,589.68
  4. Step 4: Simplify right side
    31,902.21x = 890,223,897.12
  5. Step 5: Solve for x
    x = 890,223,897.12/31,902.21
  6. Step 6: Final answer
    x = 27,904.77

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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.