Home / 36,988.72-55,504.96-13,631.60

Finding the Fourth Proportional to 36,988.72, 55,504.96 and 13,631.60

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Solution

The fourth proportional to 36,988.72, 55,504.96 and 13,631.60 is: 20,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,988.72 : 55,504.96 = 13,631.60 : x
  2. Step 2: Convert to fraction form
    36,988.72/55,504.96 = 13,631.60/x
  3. Step 3: Cross multiply
    36,988.72x = 55,504.96 × 13,631.60
  4. Step 4: Simplify right side
    36,988.72x = 756,621,412.74
  5. Step 5: Solve for x
    x = 756,621,412.74/36,988.72
  6. Step 6: Final answer
    x = 20,455.46

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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.