Home / 30,617.72-42,249.53-17,185.89

Finding the Fourth Proportional to 30,617.72, 42,249.53 and 17,185.89

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Solution

The fourth proportional to 30,617.72, 42,249.53 and 17,185.89 is: 23,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.72 : 42,249.53 = 17,185.89 : x
  2. Step 2: Convert to fraction form
    30,617.72/42,249.53 = 17,185.89/x
  3. Step 3: Cross multiply
    30,617.72x = 42,249.53 × 17,185.89
  4. Step 4: Simplify right side
    30,617.72x = 726,095,775.13
  5. Step 5: Solve for x
    x = 726,095,775.13/30,617.72
  6. Step 6: Final answer
    x = 23,714.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.