Home / 36,178.70-49,921.86-20,865.81

Finding the Fourth Proportional to 36,178.70, 49,921.86 and 20,865.81

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Solution

The fourth proportional to 36,178.70, 49,921.86 and 20,865.81 is: 28,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,178.70 : 49,921.86 = 20,865.81 : x
  2. Step 2: Convert to fraction form
    36,178.70/49,921.86 = 20,865.81/x
  3. Step 3: Cross multiply
    36,178.70x = 49,921.86 × 20,865.81
  4. Step 4: Simplify right side
    36,178.70x = 1,041,660,045.61
  5. Step 5: Solve for x
    x = 1,041,660,045.61/36,178.70
  6. Step 6: Final answer
    x = 28,792.08

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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.