Home / 36,386.52-54,609.20-18,861.36

Finding the Fourth Proportional to 36,386.52, 54,609.20 and 18,861.36

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Solution

The fourth proportional to 36,386.52, 54,609.20 and 18,861.36 is: 28,307.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,386.52 : 54,609.20 = 18,861.36 : x
  2. Step 2: Convert to fraction form
    36,386.52/54,609.20 = 18,861.36/x
  3. Step 3: Cross multiply
    36,386.52x = 54,609.20 × 18,861.36
  4. Step 4: Simplify right side
    36,386.52x = 1,030,003,780.51
  5. Step 5: Solve for x
    x = 1,030,003,780.51/36,386.52
  6. Step 6: Final answer
    x = 28,307.29

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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.