Home / 36,989.31-55,485.78-18,031.36

Finding the Fourth Proportional to 36,989.31, 55,485.78 and 18,031.36

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Solution

The fourth proportional to 36,989.31, 55,485.78 and 18,031.36 is: 27,047.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,989.31 : 55,485.78 = 18,031.36 : x
  2. Step 2: Convert to fraction form
    36,989.31/55,485.78 = 18,031.36/x
  3. Step 3: Cross multiply
    36,989.31x = 55,485.78 × 18,031.36
  4. Step 4: Simplify right side
    36,989.31x = 1,000,484,123.90
  5. Step 5: Solve for x
    x = 1,000,484,123.90/36,989.31
  6. Step 6: Final answer
    x = 27,047.93

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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.