Home / 31,154.64-42,991.79-17,725.62

Finding the Fourth Proportional to 31,154.64, 42,991.79 and 17,725.62

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Solution

The fourth proportional to 31,154.64, 42,991.79 and 17,725.62 is: 24,460.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.64 : 42,991.79 = 17,725.62 : x
  2. Step 2: Convert to fraction form
    31,154.64/42,991.79 = 17,725.62/x
  3. Step 3: Cross multiply
    31,154.64x = 42,991.79 × 17,725.62
  4. Step 4: Simplify right side
    31,154.64x = 762,056,132.66
  5. Step 5: Solve for x
    x = 762,056,132.66/31,154.64
  6. Step 6: Final answer
    x = 24,460.44

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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.