Home / 31,435.96-47,124.65-21,579.88

Finding the Fourth Proportional to 31,435.96, 47,124.65 and 21,579.88

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Solution

The fourth proportional to 31,435.96, 47,124.65 and 21,579.88 is: 32,349.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.96 : 47,124.65 = 21,579.88 : x
  2. Step 2: Convert to fraction form
    31,435.96/47,124.65 = 21,579.88/x
  3. Step 3: Cross multiply
    31,435.96x = 47,124.65 × 21,579.88
  4. Step 4: Simplify right side
    31,435.96x = 1,016,944,184.14
  5. Step 5: Solve for x
    x = 1,016,944,184.14/31,435.96
  6. Step 6: Final answer
    x = 32,349.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.