Home / 31,251.46-43,086.28-19,916.82

Finding the Fourth Proportional to 31,251.46, 43,086.28 and 19,916.82

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Solution

The fourth proportional to 31,251.46, 43,086.28 and 19,916.82 is: 27,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251.46 : 43,086.28 = 19,916.82 : x
  2. Step 2: Convert to fraction form
    31,251.46/43,086.28 = 19,916.82/x
  3. Step 3: Cross multiply
    31,251.46x = 43,086.28 × 19,916.82
  4. Step 4: Simplify right side
    31,251.46x = 858,141,683.23
  5. Step 5: Solve for x
    x = 858,141,683.23/31,251.46
  6. Step 6: Final answer
    x = 27,459.25

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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.