Home / 28,680.04-39,578.70-16,105.96

Finding the Fourth Proportional to 28,680.04, 39,578.70 and 16,105.96

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Solution

The fourth proportional to 28,680.04, 39,578.70 and 16,105.96 is: 22,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.04 : 39,578.70 = 16,105.96 : x
  2. Step 2: Convert to fraction form
    28,680.04/39,578.70 = 16,105.96/x
  3. Step 3: Cross multiply
    28,680.04x = 39,578.70 × 16,105.96
  4. Step 4: Simplify right side
    28,680.04x = 637,452,959.05
  5. Step 5: Solve for x
    x = 637,452,959.05/28,680.04
  6. Step 6: Final answer
    x = 22,226.36

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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.