Home / 31,283.64-43,193.52-19,350.72

Finding the Fourth Proportional to 31,283.64, 43,193.52 and 19,350.72

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Solution

The fourth proportional to 31,283.64, 43,193.52 and 19,350.72 is: 26,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,283.64 : 43,193.52 = 19,350.72 : x
  2. Step 2: Convert to fraction form
    31,283.64/43,193.52 = 19,350.72/x
  3. Step 3: Cross multiply
    31,283.64x = 43,193.52 × 19,350.72
  4. Step 4: Simplify right side
    31,283.64x = 835,825,711.33
  5. Step 5: Solve for x
    x = 835,825,711.33/31,283.64
  6. Step 6: Final answer
    x = 26,717.66

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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.