Home / 22,316.96-30,797.13-12,885.32

Finding the Fourth Proportional to 22,316.96, 30,797.13 and 12,885.32

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Solution

The fourth proportional to 22,316.96, 30,797.13 and 12,885.32 is: 17,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,316.96 : 30,797.13 = 12,885.32 : x
  2. Step 2: Convert to fraction form
    22,316.96/30,797.13 = 12,885.32/x
  3. Step 3: Cross multiply
    22,316.96x = 30,797.13 × 12,885.32
  4. Step 4: Simplify right side
    22,316.96x = 396,830,721.15
  5. Step 5: Solve for x
    x = 396,830,721.15/22,316.96
  6. Step 6: Final answer
    x = 17,781.58

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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.