Home / 21,626.72-29,854.92-12,672.98

Finding the Fourth Proportional to 21,626.72, 29,854.92 and 12,672.98

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Solution

The fourth proportional to 21,626.72, 29,854.92 and 12,672.98 is: 17,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.72 : 29,854.92 = 12,672.98 : x
  2. Step 2: Convert to fraction form
    21,626.72/29,854.92 = 12,672.98/x
  3. Step 3: Cross multiply
    21,626.72x = 29,854.92 × 12,672.98
  4. Step 4: Simplify right side
    21,626.72x = 378,350,804.06
  5. Step 5: Solve for x
    x = 378,350,804.06/21,626.72
  6. Step 6: Final answer
    x = 17,494.60

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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.