Home / 30,297.72-41,815.86-17,720.04

Finding the Fourth Proportional to 30,297.72, 41,815.86 and 17,720.04

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Solution

The fourth proportional to 30,297.72, 41,815.86 and 17,720.04 is: 24,456.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,297.72 : 41,815.86 = 17,720.04 : x
  2. Step 2: Convert to fraction form
    30,297.72/41,815.86 = 17,720.04/x
  3. Step 3: Cross multiply
    30,297.72x = 41,815.86 × 17,720.04
  4. Step 4: Simplify right side
    30,297.72x = 740,978,711.83
  5. Step 5: Solve for x
    x = 740,978,711.83/30,297.72
  6. Step 6: Final answer
    x = 24,456.58

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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.