Home / 21,898.67-30,220.20-12,467.24

Finding the Fourth Proportional to 21,898.67, 30,220.20 and 12,467.24

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Solution

The fourth proportional to 21,898.67, 30,220.20 and 12,467.24 is: 17,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.67 : 30,220.20 = 12,467.24 : x
  2. Step 2: Convert to fraction form
    21,898.67/30,220.20 = 12,467.24/x
  3. Step 3: Cross multiply
    21,898.67x = 30,220.20 × 12,467.24
  4. Step 4: Simplify right side
    21,898.67x = 376,762,486.25
  5. Step 5: Solve for x
    x = 376,762,486.25/21,898.67
  6. Step 6: Final answer
    x = 17,204.81

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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.