Home / 31,346.73-43,256.84-17,916.21

Finding the Fourth Proportional to 31,346.73, 43,256.84 and 17,916.21

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Solution

The fourth proportional to 31,346.73, 43,256.84 and 17,916.21 is: 24,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.73 : 43,256.84 = 17,916.21 : x
  2. Step 2: Convert to fraction form
    31,346.73/43,256.84 = 17,916.21/x
  3. Step 3: Cross multiply
    31,346.73x = 43,256.84 × 17,916.21
  4. Step 4: Simplify right side
    31,346.73x = 774,998,539.80
  5. Step 5: Solve for x
    x = 774,998,539.80/31,346.73
  6. Step 6: Final answer
    x = 24,723.43

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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.