Home / 36,655.17-54,999.18-21,072.80

Finding the Fourth Proportional to 36,655.17, 54,999.18 and 21,072.80

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Solution

The fourth proportional to 36,655.17, 54,999.18 and 21,072.80 is: 31,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,655.17 : 54,999.18 = 21,072.80 : x
  2. Step 2: Convert to fraction form
    36,655.17/54,999.18 = 21,072.80/x
  3. Step 3: Cross multiply
    36,655.17x = 54,999.18 × 21,072.80
  4. Step 4: Simplify right side
    36,655.17x = 1,158,986,445.31
  5. Step 5: Solve for x
    x = 1,158,986,445.31/36,655.17
  6. Step 6: Final answer
    x = 31,618.64

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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.