Home / 31,883.13-47,772.14-18,518.60

Finding the Fourth Proportional to 31,883.13, 47,772.14 and 18,518.60

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Solution

The fourth proportional to 31,883.13, 47,772.14 and 18,518.60 is: 27,747.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,883.13 : 47,772.14 = 18,518.60 : x
  2. Step 2: Convert to fraction form
    31,883.13/47,772.14 = 18,518.60/x
  3. Step 3: Cross multiply
    31,883.13x = 47,772.14 × 18,518.60
  4. Step 4: Simplify right side
    31,883.13x = 884,673,349.99
  5. Step 5: Solve for x
    x = 884,673,349.99/31,883.13
  6. Step 6: Final answer
    x = 27,747.38

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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.