Home / 22,316.14-30,794.07-12,887.74

Finding the Fourth Proportional to 22,316.14, 30,794.07 and 12,887.74

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Solution

The fourth proportional to 22,316.14, 30,794.07 and 12,887.74 is: 17,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,316.14 : 30,794.07 = 12,887.74 : x
  2. Step 2: Convert to fraction form
    22,316.14/30,794.07 = 12,887.74/x
  3. Step 3: Cross multiply
    22,316.14x = 30,794.07 × 12,887.74
  4. Step 4: Simplify right side
    22,316.14x = 396,865,967.70
  5. Step 5: Solve for x
    x = 396,865,967.70/22,316.14
  6. Step 6: Final answer
    x = 17,783.81

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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.