Home / 20,354.04-28,090.67-11,740.56

Finding the Fourth Proportional to 20,354.04, 28,090.67 and 11,740.56

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Solution

The fourth proportional to 20,354.04, 28,090.67 and 11,740.56 is: 16,203.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.04 : 28,090.67 = 11,740.56 : x
  2. Step 2: Convert to fraction form
    20,354.04/28,090.67 = 11,740.56/x
  3. Step 3: Cross multiply
    20,354.04x = 28,090.67 × 11,740.56
  4. Step 4: Simplify right side
    20,354.04x = 329,800,137.87
  5. Step 5: Solve for x
    x = 329,800,137.87/20,354.04
  6. Step 6: Final answer
    x = 16,203.18

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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.