Home / 36,312.48-50,107.32-20,398.68

Finding the Fourth Proportional to 36,312.48, 50,107.32 and 20,398.68

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Solution

The fourth proportional to 36,312.48, 50,107.32 and 20,398.68 is: 28,147.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,312.48 : 50,107.32 = 20,398.68 : x
  2. Step 2: Convert to fraction form
    36,312.48/50,107.32 = 20,398.68/x
  3. Step 3: Cross multiply
    36,312.48x = 50,107.32 × 20,398.68
  4. Step 4: Simplify right side
    36,312.48x = 1,022,123,186.34
  5. Step 5: Solve for x
    x = 1,022,123,186.34/36,312.48
  6. Step 6: Final answer
    x = 28,147.99

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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.