Home / 21,743.63-29,781.36-20,466.96

Finding the Fourth Proportional to 21,743.63, 29,781.36 and 20,466.96

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Solution

The fourth proportional to 21,743.63, 29,781.36 and 20,466.96 is: 28,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.63 : 29,781.36 = 20,466.96 : x
  2. Step 2: Convert to fraction form
    21,743.63/29,781.36 = 20,466.96/x
  3. Step 3: Cross multiply
    21,743.63x = 29,781.36 × 20,466.96
  4. Step 4: Simplify right side
    21,743.63x = 609,533,903.87
  5. Step 5: Solve for x
    x = 609,533,903.87/21,743.63
  6. Step 6: Final answer
    x = 28,032.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.