Home / 28,979.72-39,991.57-16,233.36

Finding the Fourth Proportional to 28,979.72, 39,991.57 and 16,233.36

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Solution

The fourth proportional to 28,979.72, 39,991.57 and 16,233.36 is: 22,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.72 : 39,991.57 = 16,233.36 : x
  2. Step 2: Convert to fraction form
    28,979.72/39,991.57 = 16,233.36/x
  3. Step 3: Cross multiply
    28,979.72x = 39,991.57 × 16,233.36
  4. Step 4: Simplify right side
    28,979.72x = 649,197,678.49
  5. Step 5: Solve for x
    x = 649,197,678.49/28,979.72
  6. Step 6: Final answer
    x = 22,401.79

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1.5x scale

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.