Home / 21,467.26-29,609.85-20,744.74

Finding the Fourth Proportional to 21,467.26, 29,609.85 and 20,744.74

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Solution

The fourth proportional to 21,467.26, 29,609.85 and 20,744.74 is: 28,613.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.26 : 29,609.85 = 20,744.74 : x
  2. Step 2: Convert to fraction form
    21,467.26/29,609.85 = 20,744.74/x
  3. Step 3: Cross multiply
    21,467.26x = 29,609.85 × 20,744.74
  4. Step 4: Simplify right side
    21,467.26x = 614,248,639.69
  5. Step 5: Solve for x
    x = 614,248,639.69/21,467.26
  6. Step 6: Final answer
    x = 28,613.28

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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.