Home / 22,653.20-33,979.80-16,821.20

Finding the Fourth Proportional to 22,653.20, 33,979.80 and 16,821.20

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Solution

The fourth proportional to 22,653.20, 33,979.80 and 16,821.20 is: 25,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,653.20 : 33,979.80 = 16,821.20 : x
  2. Step 2: Convert to fraction form
    22,653.20/33,979.80 = 16,821.20/x
  3. Step 3: Cross multiply
    22,653.20x = 33,979.80 × 16,821.20
  4. Step 4: Simplify right side
    22,653.20x = 571,581,011.76
  5. Step 5: Solve for x
    x = 571,581,011.76/22,653.20
  6. Step 6: Final answer
    x = 25,231.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.