Home / 17,739.45-24,480.36-9,781.61

Finding the Fourth Proportional to 17,739.45, 24,480.36 and 9,781.61

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Solution

The fourth proportional to 17,739.45, 24,480.36 and 9,781.61 is: 13,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.45 : 24,480.36 = 9,781.61 : x
  2. Step 2: Convert to fraction form
    17,739.45/24,480.36 = 9,781.61/x
  3. Step 3: Cross multiply
    17,739.45x = 24,480.36 × 9,781.61
  4. Step 4: Simplify right side
    17,739.45x = 239,457,211.78
  5. Step 5: Solve for x
    x = 239,457,211.78/17,739.45
  6. Step 6: Final answer
    x = 13,498.57

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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.