Home / 36,909.48-55,331.31-13,530.45

Finding the Fourth Proportional to 36,909.48, 55,331.31 and 13,530.45

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Solution

The fourth proportional to 36,909.48, 55,331.31 and 13,530.45 is: 20,283.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,909.48 : 55,331.31 = 13,530.45 : x
  2. Step 2: Convert to fraction form
    36,909.48/55,331.31 = 13,530.45/x
  3. Step 3: Cross multiply
    36,909.48x = 55,331.31 × 13,530.45
  4. Step 4: Simplify right side
    36,909.48x = 748,657,523.39
  5. Step 5: Solve for x
    x = 748,657,523.39/36,909.48
  6. Step 6: Final answer
    x = 20,283.61

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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.