Home / 18,789.15-25,931.79-10,829.82

Finding the Fourth Proportional to 18,789.15, 25,931.79 and 10,829.82

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Solution

The fourth proportional to 18,789.15, 25,931.79 and 10,829.82 is: 14,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.15 : 25,931.79 = 10,829.82 : x
  2. Step 2: Convert to fraction form
    18,789.15/25,931.79 = 10,829.82/x
  3. Step 3: Cross multiply
    18,789.15x = 25,931.79 × 10,829.82
  4. Step 4: Simplify right side
    18,789.15x = 280,836,617.98
  5. Step 5: Solve for x
    x = 280,836,617.98/18,789.15
  6. Step 6: Final answer
    x = 14,946.74

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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.