Home / 21,408.10-32,148.60-14,045.20

Finding the Fourth Proportional to 21,408.10, 32,148.60 and 14,045.20

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Solution

The fourth proportional to 21,408.10, 32,148.60 and 14,045.20 is: 21,091.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.10 : 32,148.60 = 14,045.20 : x
  2. Step 2: Convert to fraction form
    21,408.10/32,148.60 = 14,045.20/x
  3. Step 3: Cross multiply
    21,408.10x = 32,148.60 × 14,045.20
  4. Step 4: Simplify right side
    21,408.10x = 451,533,516.72
  5. Step 5: Solve for x
    x = 451,533,516.72/21,408.10
  6. Step 6: Final answer
    x = 21,091.71

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1.5x scale

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.