Home / 31,226.12-43,081.56-17,787.87

Finding the Fourth Proportional to 31,226.12, 43,081.56 and 17,787.87

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Solution

The fourth proportional to 31,226.12, 43,081.56 and 17,787.87 is: 24,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,226.12 : 43,081.56 = 17,787.87 : x
  2. Step 2: Convert to fraction form
    31,226.12/43,081.56 = 17,787.87/x
  3. Step 3: Cross multiply
    31,226.12x = 43,081.56 × 17,787.87
  4. Step 4: Simplify right side
    31,226.12x = 766,329,125.44
  5. Step 5: Solve for x
    x = 766,329,125.44/31,226.12
  6. Step 6: Final answer
    x = 24,541.28

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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.