Home / 28,979.61-39,992.36-16,232.68

Finding the Fourth Proportional to 28,979.61, 39,992.36 and 16,232.68

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Solution

The fourth proportional to 28,979.61, 39,992.36 and 16,232.68 is: 22,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.61 : 39,992.36 = 16,232.68 : x
  2. Step 2: Convert to fraction form
    28,979.61/39,992.36 = 16,232.68/x
  3. Step 3: Cross multiply
    28,979.61x = 39,992.36 × 16,232.68
  4. Step 4: Simplify right side
    28,979.61x = 649,183,017.50
  5. Step 5: Solve for x
    x = 649,183,017.50/28,979.61
  6. Step 6: Final answer
    x = 22,401.37

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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.