Home / 21,474.50-29,638.05-13,095.86

Finding the Fourth Proportional to 21,474.50, 29,638.05 and 13,095.86

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Solution

The fourth proportional to 21,474.50, 29,638.05 and 13,095.86 is: 18,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.50 : 29,638.05 = 13,095.86 : x
  2. Step 2: Convert to fraction form
    21,474.50/29,638.05 = 13,095.86/x
  3. Step 3: Cross multiply
    21,474.50x = 29,638.05 × 13,095.86
  4. Step 4: Simplify right side
    21,474.50x = 388,135,753.47
  5. Step 5: Solve for x
    x = 388,135,753.47/21,474.50
  6. Step 6: Final answer
    x = 18,074.26

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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.