Home / 21,231.56-31,855.98-9,550.28

Finding the Fourth Proportional to 21,231.56, 31,855.98 and 9,550.28

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Solution

The fourth proportional to 21,231.56, 31,855.98 and 9,550.28 is: 14,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231.56 : 31,855.98 = 9,550.28 : x
  2. Step 2: Convert to fraction form
    21,231.56/31,855.98 = 9,550.28/x
  3. Step 3: Cross multiply
    21,231.56x = 31,855.98 × 9,550.28
  4. Step 4: Simplify right side
    21,231.56x = 304,233,528.67
  5. Step 5: Solve for x
    x = 304,233,528.67/21,231.56
  6. Step 6: Final answer
    x = 14,329.31

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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.