Home / 31,966.64-47,863.84-20,845.74

Finding the Fourth Proportional to 31,966.64, 47,863.84 and 20,845.74

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Solution

The fourth proportional to 31,966.64, 47,863.84 and 20,845.74 is: 31,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,966.64 : 47,863.84 = 20,845.74 : x
  2. Step 2: Convert to fraction form
    31,966.64/47,863.84 = 20,845.74/x
  3. Step 3: Cross multiply
    31,966.64x = 47,863.84 × 20,845.74
  4. Step 4: Simplify right side
    31,966.64x = 997,757,164.04
  5. Step 5: Solve for x
    x = 997,757,164.04/31,966.64
  6. Step 6: Final answer
    x = 31,212.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.