Home / 31,669.24-43,702.32-17,521.78

Finding the Fourth Proportional to 31,669.24, 43,702.32 and 17,521.78

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Solution

The fourth proportional to 31,669.24, 43,702.32 and 17,521.78 is: 24,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.24 : 43,702.32 = 17,521.78 : x
  2. Step 2: Convert to fraction form
    31,669.24/43,702.32 = 17,521.78/x
  3. Step 3: Cross multiply
    31,669.24x = 43,702.32 × 17,521.78
  4. Step 4: Simplify right side
    31,669.24x = 765,742,436.53
  5. Step 5: Solve for x
    x = 765,742,436.53/31,669.24
  6. Step 6: Final answer
    x = 24,179.38

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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.