Home / 21,452.22-32,173.20-7,412.72

Finding the Fourth Proportional to 21,452.22, 32,173.20 and 7,412.72

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Solution

The fourth proportional to 21,452.22, 32,173.20 and 7,412.72 is: 11,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.22 : 32,173.20 = 7,412.72 : x
  2. Step 2: Convert to fraction form
    21,452.22/32,173.20 = 7,412.72/x
  3. Step 3: Cross multiply
    21,452.22x = 32,173.20 × 7,412.72
  4. Step 4: Simplify right side
    21,452.22x = 238,490,762.24
  5. Step 5: Solve for x
    x = 238,490,762.24/21,452.22
  6. Step 6: Final answer
    x = 11,117.30

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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.