Home / 21,260.66-29,338.92-11,829.02

Finding the Fourth Proportional to 21,260.66, 29,338.92 and 11,829.02

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Solution

The fourth proportional to 21,260.66, 29,338.92 and 11,829.02 is: 16,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.66 : 29,338.92 = 11,829.02 : x
  2. Step 2: Convert to fraction form
    21,260.66/29,338.92 = 11,829.02/x
  3. Step 3: Cross multiply
    21,260.66x = 29,338.92 × 11,829.02
  4. Step 4: Simplify right side
    21,260.66x = 347,050,524.76
  5. Step 5: Solve for x
    x = 347,050,524.76/21,260.66
  6. Step 6: Final answer
    x = 16,323.60

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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.