Home / 28,630.83-42,969.33-19,740.69

Finding the Fourth Proportional to 28,630.83, 42,969.33 and 19,740.69

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Solution

The fourth proportional to 28,630.83, 42,969.33 and 19,740.69 is: 29,626.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.83 : 42,969.33 = 19,740.69 : x
  2. Step 2: Convert to fraction form
    28,630.83/42,969.33 = 19,740.69/x
  3. Step 3: Cross multiply
    28,630.83x = 42,969.33 × 19,740.69
  4. Step 4: Simplify right side
    28,630.83x = 848,244,223.04
  5. Step 5: Solve for x
    x = 848,244,223.04/28,630.83
  6. Step 6: Final answer
    x = 29,626.95

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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.