Home / 31,685.64-47,433.74-19,167.86

Finding the Fourth Proportional to 31,685.64, 47,433.74 and 19,167.86

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Solution

The fourth proportional to 31,685.64, 47,433.74 and 19,167.86 is: 28,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.64 : 47,433.74 = 19,167.86 : x
  2. Step 2: Convert to fraction form
    31,685.64/47,433.74 = 19,167.86/x
  3. Step 3: Cross multiply
    31,685.64x = 47,433.74 × 19,167.86
  4. Step 4: Simplify right side
    31,685.64x = 909,202,954.59
  5. Step 5: Solve for x
    x = 909,202,954.59/31,685.64
  6. Step 6: Final answer
    x = 28,694.48

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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.