Home / 21,714.94-29,988.45-18,713.98

Finding the Fourth Proportional to 21,714.94, 29,988.45 and 18,713.98

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Solution

The fourth proportional to 21,714.94, 29,988.45 and 18,713.98 is: 25,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,714.94 : 29,988.45 = 18,713.98 : x
  2. Step 2: Convert to fraction form
    21,714.94/29,988.45 = 18,713.98/x
  3. Step 3: Cross multiply
    21,714.94x = 29,988.45 × 18,713.98
  4. Step 4: Simplify right side
    21,714.94x = 561,203,253.53
  5. Step 5: Solve for x
    x = 561,203,253.53/21,714.94
  6. Step 6: Final answer
    x = 25,844.11

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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.