Home / 21,466.26-29,608.47-20,743.74

Finding the Fourth Proportional to 21,466.26, 29,608.47 and 20,743.74

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Solution

The fourth proportional to 21,466.26, 29,608.47 and 20,743.74 is: 28,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,466.26 : 29,608.47 = 20,743.74 : x
  2. Step 2: Convert to fraction form
    21,466.26/29,608.47 = 20,743.74/x
  3. Step 3: Cross multiply
    21,466.26x = 29,608.47 × 20,743.74
  4. Step 4: Simplify right side
    21,466.26x = 614,190,403.48
  5. Step 5: Solve for x
    x = 614,190,403.48/21,466.26
  6. Step 6: Final answer
    x = 28,611.90

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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.