Home / 19,700.90-27,186.56-11,742.98

Finding the Fourth Proportional to 19,700.90, 27,186.56 and 11,742.98

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Solution

The fourth proportional to 19,700.90, 27,186.56 and 11,742.98 is: 16,204.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700.90 : 27,186.56 = 11,742.98 : x
  2. Step 2: Convert to fraction form
    19,700.90/27,186.56 = 11,742.98/x
  3. Step 3: Cross multiply
    19,700.90x = 27,186.56 × 11,742.98
  4. Step 4: Simplify right side
    19,700.90x = 319,251,230.35
  5. Step 5: Solve for x
    x = 319,251,230.35/19,700.90
  6. Step 6: Final answer
    x = 16,204.91

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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.