Home / 31,764.50-47,646.75-21,759.38

Finding the Fourth Proportional to 31,764.50, 47,646.75 and 21,759.38

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Solution

The fourth proportional to 31,764.50, 47,646.75 and 21,759.38 is: 32,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,764.50 : 47,646.75 = 21,759.38 : x
  2. Step 2: Convert to fraction form
    31,764.50/47,646.75 = 21,759.38/x
  3. Step 3: Cross multiply
    31,764.50x = 47,646.75 × 21,759.38
  4. Step 4: Simplify right side
    31,764.50x = 1,036,763,739.02
  5. Step 5: Solve for x
    x = 1,036,763,739.02/31,764.50
  6. Step 6: Final answer
    x = 32,639.07

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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.