Home / 21,023.16-29,012.34-11,463.12

Finding the Fourth Proportional to 21,023.16, 29,012.34 and 11,463.12

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Solution

The fourth proportional to 21,023.16, 29,012.34 and 11,463.12 is: 15,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.16 : 29,012.34 = 11,463.12 : x
  2. Step 2: Convert to fraction form
    21,023.16/29,012.34 = 11,463.12/x
  3. Step 3: Cross multiply
    21,023.16x = 29,012.34 × 11,463.12
  4. Step 4: Simplify right side
    21,023.16x = 332,571,934.90
  5. Step 5: Solve for x
    x = 332,571,934.90/21,023.16
  6. Step 6: Final answer
    x = 15,819.31

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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.