Home / 31,809.30-47,721.45-9,622.86

Finding the Fourth Proportional to 31,809.30, 47,721.45 and 9,622.86

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Solution

The fourth proportional to 31,809.30, 47,721.45 and 9,622.86 is: 14,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,809.30 : 47,721.45 = 9,622.86 : x
  2. Step 2: Convert to fraction form
    31,809.30/47,721.45 = 9,622.86/x
  3. Step 3: Cross multiply
    31,809.30x = 47,721.45 × 9,622.86
  4. Step 4: Simplify right side
    31,809.30x = 459,216,832.35
  5. Step 5: Solve for x
    x = 459,216,832.35/31,809.30
  6. Step 6: Final answer
    x = 14,436.56

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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.