Home / 36,761.40-55,069.20-21,160.80

Finding the Fourth Proportional to 36,761.40, 55,069.20 and 21,160.80

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Solution

The fourth proportional to 36,761.40, 55,069.20 and 21,160.80 is: 31,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,761.40 : 55,069.20 = 21,160.80 : x
  2. Step 2: Convert to fraction form
    36,761.40/55,069.20 = 21,160.80/x
  3. Step 3: Cross multiply
    36,761.40x = 55,069.20 × 21,160.80
  4. Step 4: Simplify right side
    36,761.40x = 1,165,308,327.36
  5. Step 5: Solve for x
    x = 1,165,308,327.36/36,761.40
  6. Step 6: Final answer
    x = 31,699.24

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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.