Home / 21,945.72-32,923.75-12,591.74

Finding the Fourth Proportional to 21,945.72, 32,923.75 and 12,591.74

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Solution

The fourth proportional to 21,945.72, 32,923.75 and 12,591.74 is: 18,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945.72 : 32,923.75 = 12,591.74 : x
  2. Step 2: Convert to fraction form
    21,945.72/32,923.75 = 12,591.74/x
  3. Step 3: Cross multiply
    21,945.72x = 32,923.75 × 12,591.74
  4. Step 4: Simplify right side
    21,945.72x = 414,567,299.83
  5. Step 5: Solve for x
    x = 414,567,299.83/21,945.72
  6. Step 6: Final answer
    x = 18,890.58

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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.