Home / 20,975.04-31,473.45-19,764.90

Finding the Fourth Proportional to 20,975.04, 31,473.45 and 19,764.90

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Solution

The fourth proportional to 20,975.04, 31,473.45 and 19,764.90 is: 29,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.04 : 31,473.45 = 19,764.90 : x
  2. Step 2: Convert to fraction form
    20,975.04/31,473.45 = 19,764.90/x
  3. Step 3: Cross multiply
    20,975.04x = 31,473.45 × 19,764.90
  4. Step 4: Simplify right side
    20,975.04x = 622,069,591.91
  5. Step 5: Solve for x
    x = 622,069,591.91/20,975.04
  6. Step 6: Final answer
    x = 29,657.61

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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.