Home / 31,837.14-47,765.72-13,125.99

Finding the Fourth Proportional to 31,837.14, 47,765.72 and 13,125.99

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Solution

The fourth proportional to 31,837.14, 47,765.72 and 13,125.99 is: 19,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,837.14 : 47,765.72 = 13,125.99 : x
  2. Step 2: Convert to fraction form
    31,837.14/47,765.72 = 13,125.99/x
  3. Step 3: Cross multiply
    31,837.14x = 47,765.72 × 13,125.99
  4. Step 4: Simplify right side
    31,837.14x = 626,972,297.43
  5. Step 5: Solve for x
    x = 626,972,297.43/31,837.14
  6. Step 6: Final answer
    x = 19,693.11

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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.