Home / 36,899.32-50,919.06-20,981.56

Finding the Fourth Proportional to 36,899.32, 50,919.06 and 20,981.56

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Solution

The fourth proportional to 36,899.32, 50,919.06 and 20,981.56 is: 28,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,899.32 : 50,919.06 = 20,981.56 : x
  2. Step 2: Convert to fraction form
    36,899.32/50,919.06 = 20,981.56/x
  3. Step 3: Cross multiply
    36,899.32x = 50,919.06 × 20,981.56
  4. Step 4: Simplify right side
    36,899.32x = 1,068,361,312.53
  5. Step 5: Solve for x
    x = 1,068,361,312.53/36,899.32
  6. Step 6: Final answer
    x = 28,953.41

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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.