Home / 20,973.15-31,414.59-9,863.19

Finding the Fourth Proportional to 20,973.15, 31,414.59 and 9,863.19

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Solution

The fourth proportional to 20,973.15, 31,414.59 and 9,863.19 is: 14,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.15 : 31,414.59 = 9,863.19 : x
  2. Step 2: Convert to fraction form
    20,973.15/31,414.59 = 9,863.19/x
  3. Step 3: Cross multiply
    20,973.15x = 31,414.59 × 9,863.19
  4. Step 4: Simplify right side
    20,973.15x = 309,848,069.94
  5. Step 5: Solve for x
    x = 309,848,069.94/20,973.15
  6. Step 6: Final answer
    x = 14,773.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.