Home / 36,918.81-55,379-13,227.90

Finding the Fourth Proportional to 36,918.81, 55,379 and 13,227.90

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Solution

The fourth proportional to 36,918.81, 55,379 and 13,227.90 is: 19,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.81 : 55,379 = 13,227.90 : x
  2. Step 2: Convert to fraction form
    36,918.81/55,379 = 13,227.90/x
  3. Step 3: Cross multiply
    36,918.81x = 55,379 × 13,227.90
  4. Step 4: Simplify right side
    36,918.81x = 732,547,874.10
  5. Step 5: Solve for x
    x = 732,547,874.10/36,918.81
  6. Step 6: Final answer
    x = 19,842.13

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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.