Home / 40,018.66-60,031.40-11,936.90

Finding the Fourth Proportional to 40,018.66, 60,031.40 and 11,936.90

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Solution

The fourth proportional to 40,018.66, 60,031.40 and 11,936.90 is: 17,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.66 : 60,031.40 = 11,936.90 : x
  2. Step 2: Convert to fraction form
    40,018.66/60,031.40 = 11,936.90/x
  3. Step 3: Cross multiply
    40,018.66x = 60,031.40 × 11,936.90
  4. Step 4: Simplify right side
    40,018.66x = 716,588,909.05
  5. Step 5: Solve for x
    x = 716,588,909.05/40,018.66
  6. Step 6: Final answer
    x = 17,906.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.