Home / 31,682.52-43,714.88-18,933.79

Finding the Fourth Proportional to 31,682.52, 43,714.88 and 18,933.79

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Solution

The fourth proportional to 31,682.52, 43,714.88 and 18,933.79 is: 26,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.52 : 43,714.88 = 18,933.79 : x
  2. Step 2: Convert to fraction form
    31,682.52/43,714.88 = 18,933.79/x
  3. Step 3: Cross multiply
    31,682.52x = 43,714.88 × 18,933.79
  4. Step 4: Simplify right side
    31,682.52x = 827,688,357.80
  5. Step 5: Solve for x
    x = 827,688,357.80/31,682.52
  6. Step 6: Final answer
    x = 26,124.45

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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.