Home / 31,837.13-47,758.73-13,118.43

Finding the Fourth Proportional to 31,837.13, 47,758.73 and 13,118.43

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Solution

The fourth proportional to 31,837.13, 47,758.73 and 13,118.43 is: 19,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,837.13 : 47,758.73 = 13,118.43 : x
  2. Step 2: Convert to fraction form
    31,837.13/47,758.73 = 13,118.43/x
  3. Step 3: Cross multiply
    31,837.13x = 47,758.73 × 13,118.43
  4. Step 4: Simplify right side
    31,837.13x = 626,519,490.80
  5. Step 5: Solve for x
    x = 626,519,490.80/31,837.13
  6. Step 6: Final answer
    x = 19,678.90

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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.