Home / 21,102.12-31,657.50-7,063.56

Finding the Fourth Proportional to 21,102.12, 31,657.50 and 7,063.56

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Solution

The fourth proportional to 21,102.12, 31,657.50 and 7,063.56 is: 10,596.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102.12 : 31,657.50 = 7,063.56 : x
  2. Step 2: Convert to fraction form
    21,102.12/31,657.50 = 7,063.56/x
  3. Step 3: Cross multiply
    21,102.12x = 31,657.50 × 7,063.56
  4. Step 4: Simplify right side
    21,102.12x = 223,614,650.70
  5. Step 5: Solve for x
    x = 223,614,650.70/21,102.12
  6. Step 6: Final answer
    x = 10,596.79

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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.