Home / 31,721.48-47,569.92-16,922.32

Finding the Fourth Proportional to 31,721.48, 47,569.92 and 16,922.32

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Solution

The fourth proportional to 31,721.48, 47,569.92 and 16,922.32 is: 25,376.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.48 : 47,569.92 = 16,922.32 : x
  2. Step 2: Convert to fraction form
    31,721.48/47,569.92 = 16,922.32/x
  3. Step 3: Cross multiply
    31,721.48x = 47,569.92 × 16,922.32
  4. Step 4: Simplify right side
    31,721.48x = 804,993,493.81
  5. Step 5: Solve for x
    x = 804,993,493.81/31,721.48
  6. Step 6: Final answer
    x = 25,376.92

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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.