Home / 20,118.57-27,763.62-11,167.50

Finding the Fourth Proportional to 20,118.57, 27,763.62 and 11,167.50

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Solution

The fourth proportional to 20,118.57, 27,763.62 and 11,167.50 is: 15,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.57 : 27,763.62 = 11,167.50 : x
  2. Step 2: Convert to fraction form
    20,118.57/27,763.62 = 11,167.50/x
  3. Step 3: Cross multiply
    20,118.57x = 27,763.62 × 11,167.50
  4. Step 4: Simplify right side
    20,118.57x = 310,050,226.35
  5. Step 5: Solve for x
    x = 310,050,226.35/20,118.57
  6. Step 6: Final answer
    x = 15,411.15

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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.