Home / 22,725.92-31,361.80-12,656.30

Finding the Fourth Proportional to 22,725.92, 31,361.80 and 12,656.30

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Solution

The fourth proportional to 22,725.92, 31,361.80 and 12,656.30 is: 17,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,725.92 : 31,361.80 = 12,656.30 : x
  2. Step 2: Convert to fraction form
    22,725.92/31,361.80 = 12,656.30/x
  3. Step 3: Cross multiply
    22,725.92x = 31,361.80 × 12,656.30
  4. Step 4: Simplify right side
    22,725.92x = 396,924,160.89
  5. Step 5: Solve for x
    x = 396,924,160.89/22,725.92
  6. Step 6: Final answer
    x = 17,465.71

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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.