Home / 36,910.14-50,938.71-20,999.70

Finding the Fourth Proportional to 36,910.14, 50,938.71 and 20,999.70

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Solution

The fourth proportional to 36,910.14, 50,938.71 and 20,999.70 is: 28,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,910.14 : 50,938.71 = 20,999.70 : x
  2. Step 2: Convert to fraction form
    36,910.14/50,938.71 = 20,999.70/x
  3. Step 3: Cross multiply
    36,910.14x = 50,938.71 × 20,999.70
  4. Step 4: Simplify right side
    36,910.14x = 1,069,697,628.39
  5. Step 5: Solve for x
    x = 1,069,697,628.39/36,910.14
  6. Step 6: Final answer
    x = 28,981.13

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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.