Home / 36,488.37-54,735.80-13,121.49

Finding the Fourth Proportional to 36,488.37, 54,735.80 and 13,121.49

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Solution

The fourth proportional to 36,488.37, 54,735.80 and 13,121.49 is: 19,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,488.37 : 54,735.80 = 13,121.49 : x
  2. Step 2: Convert to fraction form
    36,488.37/54,735.80 = 13,121.49/x
  3. Step 3: Cross multiply
    36,488.37x = 54,735.80 × 13,121.49
  4. Step 4: Simplify right side
    36,488.37x = 718,215,186.73
  5. Step 5: Solve for x
    x = 718,215,186.73/36,488.37
  6. Step 6: Final answer
    x = 19,683.40

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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.