Home / 38,310.91-52,871.43-21,318.94

Finding the Fourth Proportional to 38,310.91, 52,871.43 and 21,318.94

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Solution

The fourth proportional to 38,310.91, 52,871.43 and 21,318.94 is: 29,421.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,310.91 : 52,871.43 = 21,318.94 : x
  2. Step 2: Convert to fraction form
    38,310.91/52,871.43 = 21,318.94/x
  3. Step 3: Cross multiply
    38,310.91x = 52,871.43 × 21,318.94
  4. Step 4: Simplify right side
    38,310.91x = 1,127,162,843.88
  5. Step 5: Solve for x
    x = 1,127,162,843.88/38,310.91
  6. Step 6: Final answer
    x = 29,421.46

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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.