Home / 36,683.78-55,009.64-12,983.45

Finding the Fourth Proportional to 36,683.78, 55,009.64 and 12,983.45

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Solution

The fourth proportional to 36,683.78, 55,009.64 and 12,983.45 is: 19,469.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,683.78 : 55,009.64 = 12,983.45 : x
  2. Step 2: Convert to fraction form
    36,683.78/55,009.64 = 12,983.45/x
  3. Step 3: Cross multiply
    36,683.78x = 55,009.64 × 12,983.45
  4. Step 4: Simplify right side
    36,683.78x = 714,214,910.46
  5. Step 5: Solve for x
    x = 714,214,910.46/36,683.78
  6. Step 6: Final answer
    x = 19,469.50

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1.5x scale

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.