Home / 37,890.38-56,770.88-21,240.02

Finding the Fourth Proportional to 37,890.38, 56,770.88 and 21,240.02

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Solution

The fourth proportional to 37,890.38, 56,770.88 and 21,240.02 is: 31,823.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,890.38 : 56,770.88 = 21,240.02 : x
  2. Step 2: Convert to fraction form
    37,890.38/56,770.88 = 21,240.02/x
  3. Step 3: Cross multiply
    37,890.38x = 56,770.88 × 21,240.02
  4. Step 4: Simplify right side
    37,890.38x = 1,205,814,662.34
  5. Step 5: Solve for x
    x = 1,205,814,662.34/37,890.38
  6. Step 6: Final answer
    x = 31,823.77

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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.