Home / 22,289.72-30,738.52-13,335.80

Finding the Fourth Proportional to 22,289.72, 30,738.52 and 13,335.80

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Solution

The fourth proportional to 22,289.72, 30,738.52 and 13,335.80 is: 18,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.72 : 30,738.52 = 13,335.80 : x
  2. Step 2: Convert to fraction form
    22,289.72/30,738.52 = 13,335.80/x
  3. Step 3: Cross multiply
    22,289.72x = 30,738.52 × 13,335.80
  4. Step 4: Simplify right side
    22,289.72x = 409,922,755.02
  5. Step 5: Solve for x
    x = 409,922,755.02/22,289.72
  6. Step 6: Final answer
    x = 18,390.66

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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.