Home / 21,408.22-29,543.40-11,848.76

Finding the Fourth Proportional to 21,408.22, 29,543.40 and 11,848.76

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Solution

The fourth proportional to 21,408.22, 29,543.40 and 11,848.76 is: 16,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.22 : 29,543.40 = 11,848.76 : x
  2. Step 2: Convert to fraction form
    21,408.22/29,543.40 = 11,848.76/x
  3. Step 3: Cross multiply
    21,408.22x = 29,543.40 × 11,848.76
  4. Step 4: Simplify right side
    21,408.22x = 350,052,785.44
  5. Step 5: Solve for x
    x = 350,052,785.44/21,408.22
  6. Step 6: Final answer
    x = 16,351.32

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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.