Home / 29,429.58-40,612.52-21,909.54

Finding the Fourth Proportional to 29,429.58, 40,612.52 and 21,909.54

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Solution

The fourth proportional to 29,429.58, 40,612.52 and 21,909.54 is: 30,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,429.58 : 40,612.52 = 21,909.54 : x
  2. Step 2: Convert to fraction form
    29,429.58/40,612.52 = 21,909.54/x
  3. Step 3: Cross multiply
    29,429.58x = 40,612.52 × 21,909.54
  4. Step 4: Simplify right side
    29,429.58x = 889,801,686.21
  5. Step 5: Solve for x
    x = 889,801,686.21/29,429.58
  6. Step 6: Final answer
    x = 30,234.94

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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.