Home / 20,374.32-28,086.52-15,893.04

Finding the Fourth Proportional to 20,374.32, 28,086.52 and 15,893.04

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Solution

The fourth proportional to 20,374.32, 28,086.52 and 15,893.04 is: 21,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.32 : 28,086.52 = 15,893.04 : x
  2. Step 2: Convert to fraction form
    20,374.32/28,086.52 = 15,893.04/x
  3. Step 3: Cross multiply
    20,374.32x = 28,086.52 × 15,893.04
  4. Step 4: Simplify right side
    20,374.32x = 446,380,185.82
  5. Step 5: Solve for x
    x = 446,380,185.82/20,374.32
  6. Step 6: Final answer
    x = 21,908.96

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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.