Home / 21,024.12-29,012.76-11,463.60

Finding the Fourth Proportional to 21,024.12, 29,012.76 and 11,463.60

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Solution

The fourth proportional to 21,024.12, 29,012.76 and 11,463.60 is: 15,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.12 : 29,012.76 = 11,463.60 : x
  2. Step 2: Convert to fraction form
    21,024.12/29,012.76 = 11,463.60/x
  3. Step 3: Cross multiply
    21,024.12x = 29,012.76 × 11,463.60
  4. Step 4: Simplify right side
    21,024.12x = 332,590,675.54
  5. Step 5: Solve for x
    x = 332,590,675.54/21,024.12
  6. Step 6: Final answer
    x = 15,819.48

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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.