Home / 21,742.18-32,617.90-7,512

Finding the Fourth Proportional to 21,742.18, 32,617.90 and 7,512

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Solution

The fourth proportional to 21,742.18, 32,617.90 and 7,512 is: 11,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.18 : 32,617.90 = 7,512 : x
  2. Step 2: Convert to fraction form
    21,742.18/32,617.90 = 7,512/x
  3. Step 3: Cross multiply
    21,742.18x = 32,617.90 × 7,512
  4. Step 4: Simplify right side
    21,742.18x = 245,025,664.80
  5. Step 5: Solve for x
    x = 245,025,664.80/21,742.18
  6. Step 6: Final answer
    x = 11,269.60

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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.