Home / 21,823.24-30,116.34-11,887.24

Finding the Fourth Proportional to 21,823.24, 30,116.34 and 11,887.24

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Solution

The fourth proportional to 21,823.24, 30,116.34 and 11,887.24 is: 16,404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.24 : 30,116.34 = 11,887.24 : x
  2. Step 2: Convert to fraction form
    21,823.24/30,116.34 = 11,887.24/x
  3. Step 3: Cross multiply
    21,823.24x = 30,116.34 × 11,887.24
  4. Step 4: Simplify right side
    21,823.24x = 358,000,161.50
  5. Step 5: Solve for x
    x = 358,000,161.50/21,823.24
  6. Step 6: Final answer
    x = 16,404.54

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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.