Home / 36,177.70-49,920.48-20,864.81

Finding the Fourth Proportional to 36,177.70, 49,920.48 and 20,864.81

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Solution

The fourth proportional to 36,177.70, 49,920.48 and 20,864.81 is: 28,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,177.70 : 49,920.48 = 20,864.81 : x
  2. Step 2: Convert to fraction form
    36,177.70/49,920.48 = 20,864.81/x
  3. Step 3: Cross multiply
    36,177.70x = 49,920.48 × 20,864.81
  4. Step 4: Simplify right side
    36,177.70x = 1,041,581,330.31
  5. Step 5: Solve for x
    x = 1,041,581,330.31/36,177.70
  6. Step 6: Final answer
    x = 28,790.70

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1.5x scale

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.