Home / 31,727.48-43,787.84-18,298.76

Finding the Fourth Proportional to 31,727.48, 43,787.84 and 18,298.76

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Solution

The fourth proportional to 31,727.48, 43,787.84 and 18,298.76 is: 25,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,727.48 : 43,787.84 = 18,298.76 : x
  2. Step 2: Convert to fraction form
    31,727.48/43,787.84 = 18,298.76/x
  3. Step 3: Cross multiply
    31,727.48x = 43,787.84 × 18,298.76
  4. Step 4: Simplify right side
    31,727.48x = 801,262,864.65
  5. Step 5: Solve for x
    x = 801,262,864.65/31,727.48
  6. Step 6: Final answer
    x = 25,254.54

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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.