Home / 20,849.40-31,272.48-9,753.21

Finding the Fourth Proportional to 20,849.40, 31,272.48 and 9,753.21

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Solution

The fourth proportional to 20,849.40, 31,272.48 and 9,753.21 is: 14,629.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.40 : 31,272.48 = 9,753.21 : x
  2. Step 2: Convert to fraction form
    20,849.40/31,272.48 = 9,753.21/x
  3. Step 3: Cross multiply
    20,849.40x = 31,272.48 × 9,753.21
  4. Step 4: Simplify right side
    20,849.40x = 305,007,064.66
  5. Step 5: Solve for x
    x = 305,007,064.66/20,849.40
  6. Step 6: Final answer
    x = 14,629.06

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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.