Home / 21,159.63-29,201.22-11,727.54

Finding the Fourth Proportional to 21,159.63, 29,201.22 and 11,727.54

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Solution

The fourth proportional to 21,159.63, 29,201.22 and 11,727.54 is: 16,184.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.63 : 29,201.22 = 11,727.54 : x
  2. Step 2: Convert to fraction form
    21,159.63/29,201.22 = 11,727.54/x
  3. Step 3: Cross multiply
    21,159.63x = 29,201.22 × 11,727.54
  4. Step 4: Simplify right side
    21,159.63x = 342,458,475.60
  5. Step 5: Solve for x
    x = 342,458,475.60/21,159.63
  6. Step 6: Final answer
    x = 16,184.52

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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.