Home / 21,059.12-29,061.24-11,628.56

Finding the Fourth Proportional to 21,059.12, 29,061.24 and 11,628.56

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Solution

The fourth proportional to 21,059.12, 29,061.24 and 11,628.56 is: 16,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.12 : 29,061.24 = 11,628.56 : x
  2. Step 2: Convert to fraction form
    21,059.12/29,061.24 = 11,628.56/x
  3. Step 3: Cross multiply
    21,059.12x = 29,061.24 × 11,628.56
  4. Step 4: Simplify right side
    21,059.12x = 337,940,373.01
  5. Step 5: Solve for x
    x = 337,940,373.01/21,059.12
  6. Step 6: Final answer
    x = 16,047.22

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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.