Home / 31,135.08-46,702.68-20,672.04

Finding the Fourth Proportional to 31,135.08, 46,702.68 and 20,672.04

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Solution

The fourth proportional to 31,135.08, 46,702.68 and 20,672.04 is: 31,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,135.08 : 46,702.68 = 20,672.04 : x
  2. Step 2: Convert to fraction form
    31,135.08/46,702.68 = 20,672.04/x
  3. Step 3: Cross multiply
    31,135.08x = 46,702.68 × 20,672.04
  4. Step 4: Simplify right side
    31,135.08x = 965,439,669.07
  5. Step 5: Solve for x
    x = 965,439,669.07/31,135.08
  6. Step 6: Final answer
    x = 31,008.10

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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.