Home / 36,899.28-50,920.80-20,983.74

Finding the Fourth Proportional to 36,899.28, 50,920.80 and 20,983.74

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Solution

The fourth proportional to 36,899.28, 50,920.80 and 20,983.74 is: 28,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,899.28 : 50,920.80 = 20,983.74 : x
  2. Step 2: Convert to fraction form
    36,899.28/50,920.80 = 20,983.74/x
  3. Step 3: Cross multiply
    36,899.28x = 50,920.80 × 20,983.74
  4. Step 4: Simplify right side
    36,899.28x = 1,068,508,827.79
  5. Step 5: Solve for x
    x = 1,068,508,827.79/36,899.28
  6. Step 6: Final answer
    x = 28,957.44

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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.