Home / 34,243.05-47,239.07-21,489.91

Finding the Fourth Proportional to 34,243.05, 47,239.07 and 21,489.91

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Solution

The fourth proportional to 34,243.05, 47,239.07 and 21,489.91 is: 29,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,243.05 : 47,239.07 = 21,489.91 : x
  2. Step 2: Convert to fraction form
    34,243.05/47,239.07 = 21,489.91/x
  3. Step 3: Cross multiply
    34,243.05x = 47,239.07 × 21,489.91
  4. Step 4: Simplify right side
    34,243.05x = 1,015,163,137.24
  5. Step 5: Solve for x
    x = 1,015,163,137.24/34,243.05
  6. Step 6: Final answer
    x = 29,645.81

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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.