Home / 21,048.76-29,049.06-11,619.28

Finding the Fourth Proportional to 21,048.76, 29,049.06 and 11,619.28

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Solution

The fourth proportional to 21,048.76, 29,049.06 and 11,619.28 is: 16,035.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.76 : 29,049.06 = 11,619.28 : x
  2. Step 2: Convert to fraction form
    21,048.76/29,049.06 = 11,619.28/x
  3. Step 3: Cross multiply
    21,048.76x = 29,049.06 × 11,619.28
  4. Step 4: Simplify right side
    21,048.76x = 337,529,161.88
  5. Step 5: Solve for x
    x = 337,529,161.88/21,048.76
  6. Step 6: Final answer
    x = 16,035.58

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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.