Home / 30,918.91-46,369.08-13,149.42

Finding the Fourth Proportional to 30,918.91, 46,369.08 and 13,149.42

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Solution

The fourth proportional to 30,918.91, 46,369.08 and 13,149.42 is: 19,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.91 : 46,369.08 = 13,149.42 : x
  2. Step 2: Convert to fraction form
    30,918.91/46,369.08 = 13,149.42/x
  3. Step 3: Cross multiply
    30,918.91x = 46,369.08 × 13,149.42
  4. Step 4: Simplify right side
    30,918.91x = 609,726,507.93
  5. Step 5: Solve for x
    x = 609,726,507.93/30,918.91
  6. Step 6: Final answer
    x = 19,720.18

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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.