Home / 19,842.31-29,764.15-9,976.21

Finding the Fourth Proportional to 19,842.31, 29,764.15 and 9,976.21

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Solution

The fourth proportional to 19,842.31, 29,764.15 and 9,976.21 is: 14,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.31 : 29,764.15 = 9,976.21 : x
  2. Step 2: Convert to fraction form
    19,842.31/29,764.15 = 9,976.21/x
  3. Step 3: Cross multiply
    19,842.31x = 29,764.15 × 9,976.21
  4. Step 4: Simplify right side
    19,842.31x = 296,933,311.52
  5. Step 5: Solve for x
    x = 296,933,311.52/19,842.31
  6. Step 6: Final answer
    x = 14,964.66

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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.