Home / 21,279.42-29,364.66-14,204.88

Finding the Fourth Proportional to 21,279.42, 29,364.66 and 14,204.88

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Solution

The fourth proportional to 21,279.42, 29,364.66 and 14,204.88 is: 19,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279.42 : 29,364.66 = 14,204.88 : x
  2. Step 2: Convert to fraction form
    21,279.42/29,364.66 = 14,204.88/x
  3. Step 3: Cross multiply
    21,279.42x = 29,364.66 × 14,204.88
  4. Step 4: Simplify right side
    21,279.42x = 417,121,471.54
  5. Step 5: Solve for x
    x = 417,121,471.54/21,279.42
  6. Step 6: Final answer
    x = 19,602.11

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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.