Home / 20,947.02-28,877.14-16,660.50

Finding the Fourth Proportional to 20,947.02, 28,877.14 and 16,660.50

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Solution

The fourth proportional to 20,947.02, 28,877.14 and 16,660.50 is: 22,967.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947.02 : 28,877.14 = 16,660.50 : x
  2. Step 2: Convert to fraction form
    20,947.02/28,877.14 = 16,660.50/x
  3. Step 3: Cross multiply
    20,947.02x = 28,877.14 × 16,660.50
  4. Step 4: Simplify right side
    20,947.02x = 481,107,590.97
  5. Step 5: Solve for x
    x = 481,107,590.97/20,947.02
  6. Step 6: Final answer
    x = 22,967.83

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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.