Home / 20,848.59-28,768.33-11,895.56

Finding the Fourth Proportional to 20,848.59, 28,768.33 and 11,895.56

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Solution

The fourth proportional to 20,848.59, 28,768.33 and 11,895.56 is: 16,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.59 : 28,768.33 = 11,895.56 : x
  2. Step 2: Convert to fraction form
    20,848.59/28,768.33 = 11,895.56/x
  3. Step 3: Cross multiply
    20,848.59x = 28,768.33 × 11,895.56
  4. Step 4: Simplify right side
    20,848.59x = 342,215,374.52
  5. Step 5: Solve for x
    x = 342,215,374.52/20,848.59
  6. Step 6: Final answer
    x = 16,414.32

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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.