Home / 20,641,021.02-30,787,385.72-17,923,979.70

Finding the Fourth Proportional to 20,641,021.02, 30,787,385.72 and 17,923,979.70

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Solution

The fourth proportional to 20,641,021.02, 30,787,385.72 and 17,923,979.70 is: 26,734,747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641,021.02 : 30,787,385.72 = 17,923,979.70 : x
  2. Step 2: Convert to fraction form
    20,641,021.02/30,787,385.72 = 17,923,979.70/x
  3. Step 3: Cross multiply
    20,641,021.02x = 30,787,385.72 × 17,923,979.70
  4. Step 4: Simplify right side
    20,641,021.02x = 551,832,476,571,729.94
  5. Step 5: Solve for x
    x = 551,832,476,571,729.94/20,641,021.02
  6. Step 6: Final answer
    x = 26,734,747.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.