Home / 28,974.54-39,983.85-16,399.02

Finding the Fourth Proportional to 28,974.54, 39,983.85 and 16,399.02

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Solution

The fourth proportional to 28,974.54, 39,983.85 and 16,399.02 is: 22,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.54 : 39,983.85 = 16,399.02 : x
  2. Step 2: Convert to fraction form
    28,974.54/39,983.85 = 16,399.02/x
  3. Step 3: Cross multiply
    28,974.54x = 39,983.85 × 16,399.02
  4. Step 4: Simplify right side
    28,974.54x = 655,695,955.83
  5. Step 5: Solve for x
    x = 655,695,955.83/28,974.54
  6. Step 6: Final answer
    x = 22,630.07

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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.