Home / 36,903.16-50,914.20-20,981.80

Finding the Fourth Proportional to 36,903.16, 50,914.20 and 20,981.80

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Solution

The fourth proportional to 36,903.16, 50,914.20 and 20,981.80 is: 28,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,903.16 : 50,914.20 = 20,981.80 : x
  2. Step 2: Convert to fraction form
    36,903.16/50,914.20 = 20,981.80/x
  3. Step 3: Cross multiply
    36,903.16x = 50,914.20 × 20,981.80
  4. Step 4: Simplify right side
    36,903.16x = 1,068,271,561.56
  5. Step 5: Solve for x
    x = 1,068,271,561.56/36,903.16
  6. Step 6: Final answer
    x = 28,947.97

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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.