Home / 21,059.96-29,062.76-11,628.60

Finding the Fourth Proportional to 21,059.96, 29,062.76 and 11,628.60

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Solution

The fourth proportional to 21,059.96, 29,062.76 and 11,628.60 is: 16,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.96 : 29,062.76 = 11,628.60 : x
  2. Step 2: Convert to fraction form
    21,059.96/29,062.76 = 11,628.60/x
  3. Step 3: Cross multiply
    21,059.96x = 29,062.76 × 11,628.60
  4. Step 4: Simplify right side
    21,059.96x = 337,959,210.94
  5. Step 5: Solve for x
    x = 337,959,210.94/21,059.96
  6. Step 6: Final answer
    x = 16,047.48

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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.