Home / 20,933.62-28,895.99-13,862.32

Finding the Fourth Proportional to 20,933.62, 28,895.99 and 13,862.32

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Solution

The fourth proportional to 20,933.62, 28,895.99 and 13,862.32 is: 19,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.62 : 28,895.99 = 13,862.32 : x
  2. Step 2: Convert to fraction form
    20,933.62/28,895.99 = 13,862.32/x
  3. Step 3: Cross multiply
    20,933.62x = 28,895.99 × 13,862.32
  4. Step 4: Simplify right side
    20,933.62x = 400,565,318.55
  5. Step 5: Solve for x
    x = 400,565,318.55/20,933.62
  6. Step 6: Final answer
    x = 19,135.03

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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.