Home / 37,905.90-52,310.13-21,991.50

Finding the Fourth Proportional to 37,905.90, 52,310.13 and 21,991.50

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Solution

The fourth proportional to 37,905.90, 52,310.13 and 21,991.50 is: 30,348.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,905.90 : 52,310.13 = 21,991.50 : x
  2. Step 2: Convert to fraction form
    37,905.90/52,310.13 = 21,991.50/x
  3. Step 3: Cross multiply
    37,905.90x = 52,310.13 × 21,991.50
  4. Step 4: Simplify right side
    37,905.90x = 1,150,378,223.90
  5. Step 5: Solve for x
    x = 1,150,378,223.90/37,905.90
  6. Step 6: Final answer
    x = 30,348.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.