Home / 31,811.92-47,622.84-19,294

Finding the Fourth Proportional to 31,811.92, 47,622.84 and 19,294

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Solution

The fourth proportional to 31,811.92, 47,622.84 and 19,294 is: 28,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.92 : 47,622.84 = 19,294 : x
  2. Step 2: Convert to fraction form
    31,811.92/47,622.84 = 19,294/x
  3. Step 3: Cross multiply
    31,811.92x = 47,622.84 × 19,294
  4. Step 4: Simplify right side
    31,811.92x = 918,835,074.96
  5. Step 5: Solve for x
    x = 918,835,074.96/31,811.92
  6. Step 6: Final answer
    x = 28,883.36

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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.