Home / 20,717.87-31,068.59-9,022.88

Finding the Fourth Proportional to 20,717.87, 31,068.59 and 9,022.88

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Solution

The fourth proportional to 20,717.87, 31,068.59 and 9,022.88 is: 13,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.87 : 31,068.59 = 9,022.88 : x
  2. Step 2: Convert to fraction form
    20,717.87/31,068.59 = 9,022.88/x
  3. Step 3: Cross multiply
    20,717.87x = 31,068.59 × 9,022.88
  4. Step 4: Simplify right side
    20,717.87x = 280,327,958.88
  5. Step 5: Solve for x
    x = 280,327,958.88/20,717.87
  6. Step 6: Final answer
    x = 13,530.74

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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.