Home / 21,034.22-29,026.76-11,602.78

Finding the Fourth Proportional to 21,034.22, 29,026.76 and 11,602.78

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Solution

The fourth proportional to 21,034.22, 29,026.76 and 11,602.78 is: 16,011.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.22 : 29,026.76 = 11,602.78 : x
  2. Step 2: Convert to fraction form
    21,034.22/29,026.76 = 11,602.78/x
  3. Step 3: Cross multiply
    21,034.22x = 29,026.76 × 11,602.78
  4. Step 4: Simplify right side
    21,034.22x = 336,791,208.35
  5. Step 5: Solve for x
    x = 336,791,208.35/21,034.22
  6. Step 6: Final answer
    x = 16,011.58

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Half scale
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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.