Home / 21,197.35-31,776.58-7,336.63

Finding the Fourth Proportional to 21,197.35, 31,776.58 and 7,336.63

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Solution

The fourth proportional to 21,197.35, 31,776.58 and 7,336.63 is: 10,998.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.35 : 31,776.58 = 7,336.63 : x
  2. Step 2: Convert to fraction form
    21,197.35/31,776.58 = 7,336.63/x
  3. Step 3: Cross multiply
    21,197.35x = 31,776.58 × 7,336.63
  4. Step 4: Simplify right side
    21,197.35x = 233,132,814.56
  5. Step 5: Solve for x
    x = 233,132,814.56/21,197.35
  6. Step 6: Final answer
    x = 10,998.21

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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.