Home / 40,018.74-60,031.16-11,936.60

Finding the Fourth Proportional to 40,018.74, 60,031.16 and 11,936.60

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Solution

The fourth proportional to 40,018.74, 60,031.16 and 11,936.60 is: 17,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.74 : 60,031.16 = 11,936.60 : x
  2. Step 2: Convert to fraction form
    40,018.74/60,031.16 = 11,936.60/x
  3. Step 3: Cross multiply
    40,018.74x = 60,031.16 × 11,936.60
  4. Step 4: Simplify right side
    40,018.74x = 716,567,944.46
  5. Step 5: Solve for x
    x = 716,567,944.46/40,018.74
  6. Step 6: Final answer
    x = 17,905.81

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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.