Home / 31,682.59-43,732.90-18,259.20

Finding the Fourth Proportional to 31,682.59, 43,732.90 and 18,259.20

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Solution

The fourth proportional to 31,682.59, 43,732.90 and 18,259.20 is: 25,203.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.59 : 43,732.90 = 18,259.20 : x
  2. Step 2: Convert to fraction form
    31,682.59/43,732.90 = 18,259.20/x
  3. Step 3: Cross multiply
    31,682.59x = 43,732.90 × 18,259.20
  4. Step 4: Simplify right side
    31,682.59x = 798,527,767.68
  5. Step 5: Solve for x
    x = 798,527,767.68/31,682.59
  6. Step 6: Final answer
    x = 25,203.99

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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.