Home / 20,354.24-28,090.92-11,740.75

Finding the Fourth Proportional to 20,354.24, 28,090.92 and 11,740.75

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Solution

The fourth proportional to 20,354.24, 28,090.92 and 11,740.75 is: 16,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.24 : 28,090.92 = 11,740.75 : x
  2. Step 2: Convert to fraction form
    20,354.24/28,090.92 = 11,740.75/x
  3. Step 3: Cross multiply
    20,354.24x = 28,090.92 × 11,740.75
  4. Step 4: Simplify right side
    20,354.24x = 329,808,376.75
  5. Step 5: Solve for x
    x = 329,808,376.75/20,354.24
  6. Step 6: Final answer
    x = 16,203.43

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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.