Home / 20,875.87-28,808.64-11,444.44

Finding the Fourth Proportional to 20,875.87, 28,808.64 and 11,444.44

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Solution

The fourth proportional to 20,875.87, 28,808.64 and 11,444.44 is: 15,793.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.87 : 28,808.64 = 11,444.44 : x
  2. Step 2: Convert to fraction form
    20,875.87/28,808.64 = 11,444.44/x
  3. Step 3: Cross multiply
    20,875.87x = 28,808.64 × 11,444.44
  4. Step 4: Simplify right side
    20,875.87x = 329,698,751.96
  5. Step 5: Solve for x
    x = 329,698,751.96/20,875.87
  6. Step 6: Final answer
    x = 15,793.29

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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.