Home / 21,008.96-31,519.55-6,218.26

Finding the Fourth Proportional to 21,008.96, 31,519.55 and 6,218.26

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Solution

The fourth proportional to 21,008.96, 31,519.55 and 6,218.26 is: 9,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008.96 : 31,519.55 = 6,218.26 : x
  2. Step 2: Convert to fraction form
    21,008.96/31,519.55 = 6,218.26/x
  3. Step 3: Cross multiply
    21,008.96x = 31,519.55 × 6,218.26
  4. Step 4: Simplify right side
    21,008.96x = 195,996,756.98
  5. Step 5: Solve for x
    x = 195,996,756.98/21,008.96
  6. Step 6: Final answer
    x = 9,329.20

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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.