Home / 23,086.43-31,885.55-15,519.64

Finding the Fourth Proportional to 23,086.43, 31,885.55 and 15,519.64

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Solution

The fourth proportional to 23,086.43, 31,885.55 and 15,519.64 is: 21,434.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,086.43 : 31,885.55 = 15,519.64 : x
  2. Step 2: Convert to fraction form
    23,086.43/31,885.55 = 15,519.64/x
  3. Step 3: Cross multiply
    23,086.43x = 31,885.55 × 15,519.64
  4. Step 4: Simplify right side
    23,086.43x = 494,852,257.20
  5. Step 5: Solve for x
    x = 494,852,257.20/23,086.43
  6. Step 6: Final answer
    x = 21,434.77

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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.