Home / 21,016.44-31,530.74-6,225.65

Finding the Fourth Proportional to 21,016.44, 31,530.74 and 6,225.65

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Solution

The fourth proportional to 21,016.44, 31,530.74 and 6,225.65 is: 9,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.44 : 31,530.74 = 6,225.65 : x
  2. Step 2: Convert to fraction form
    21,016.44/31,530.74 = 6,225.65/x
  3. Step 3: Cross multiply
    21,016.44x = 31,530.74 × 6,225.65
  4. Step 4: Simplify right side
    21,016.44x = 196,299,162.70
  5. Step 5: Solve for x
    x = 196,299,162.70/21,016.44
  6. Step 6: Final answer
    x = 9,340.27

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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.