Home / 21,348.28-32,022.43-5,765.91

Finding the Fourth Proportional to 21,348.28, 32,022.43 and 5,765.91

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Solution

The fourth proportional to 21,348.28, 32,022.43 and 5,765.91 is: 8,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.28 : 32,022.43 = 5,765.91 : x
  2. Step 2: Convert to fraction form
    21,348.28/32,022.43 = 5,765.91/x
  3. Step 3: Cross multiply
    21,348.28x = 32,022.43 × 5,765.91
  4. Step 4: Simplify right side
    21,348.28x = 184,638,314.86
  5. Step 5: Solve for x
    x = 184,638,314.86/21,348.28
  6. Step 6: Final answer
    x = 8,648.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.