Home / 15,909.99-23,705.10-15,015.75

Finding the Fourth Proportional to 15,909.99, 23,705.10 and 15,015.75

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Solution

The fourth proportional to 15,909.99, 23,705.10 and 15,015.75 is: 22,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.99 : 23,705.10 = 15,015.75 : x
  2. Step 2: Convert to fraction form
    15,909.99/23,705.10 = 15,015.75/x
  3. Step 3: Cross multiply
    15,909.99x = 23,705.10 × 15,015.75
  4. Step 4: Simplify right side
    15,909.99x = 355,949,855.33
  5. Step 5: Solve for x
    x = 355,949,855.33/15,909.99
  6. Step 6: Final answer
    x = 22,372.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.