Home / 21,702.43-29,949.50-12,633.19

Finding the Fourth Proportional to 21,702.43, 29,949.50 and 12,633.19

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Solution

The fourth proportional to 21,702.43, 29,949.50 and 12,633.19 is: 17,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.43 : 29,949.50 = 12,633.19 : x
  2. Step 2: Convert to fraction form
    21,702.43/29,949.50 = 12,633.19/x
  3. Step 3: Cross multiply
    21,702.43x = 29,949.50 × 12,633.19
  4. Step 4: Simplify right side
    21,702.43x = 378,357,723.91
  5. Step 5: Solve for x
    x = 378,357,723.91/21,702.43
  6. Step 6: Final answer
    x = 17,433.89

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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.