Home / 28,640.99-42,910.66-11,964.34

Finding the Fourth Proportional to 28,640.99, 42,910.66 and 11,964.34

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Solution

The fourth proportional to 28,640.99, 42,910.66 and 11,964.34 is: 17,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.99 : 42,910.66 = 11,964.34 : x
  2. Step 2: Convert to fraction form
    28,640.99/42,910.66 = 11,964.34/x
  3. Step 3: Cross multiply
    28,640.99x = 42,910.66 × 11,964.34
  4. Step 4: Simplify right side
    28,640.99x = 513,397,794.46
  5. Step 5: Solve for x
    x = 513,397,794.46/28,640.99
  6. Step 6: Final answer
    x = 17,925.28

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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.