Home / 36,315.91-50,110.50-20,397.31

Finding the Fourth Proportional to 36,315.91, 50,110.50 and 20,397.31

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Solution

The fourth proportional to 36,315.91, 50,110.50 and 20,397.31 is: 28,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,315.91 : 50,110.50 = 20,397.31 : x
  2. Step 2: Convert to fraction form
    36,315.91/50,110.50 = 20,397.31/x
  3. Step 3: Cross multiply
    36,315.91x = 50,110.50 × 20,397.31
  4. Step 4: Simplify right side
    36,315.91x = 1,022,119,402.76
  5. Step 5: Solve for x
    x = 1,022,119,402.76/36,315.91
  6. Step 6: Final answer
    x = 28,145.22

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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.