Home / 20,362.85-28,102.46-11,410.23

Finding the Fourth Proportional to 20,362.85, 28,102.46 and 11,410.23

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Solution

The fourth proportional to 20,362.85, 28,102.46 and 11,410.23 is: 15,747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.85 : 28,102.46 = 11,410.23 : x
  2. Step 2: Convert to fraction form
    20,362.85/28,102.46 = 11,410.23/x
  3. Step 3: Cross multiply
    20,362.85x = 28,102.46 × 11,410.23
  4. Step 4: Simplify right side
    20,362.85x = 320,655,475.11
  5. Step 5: Solve for x
    x = 320,655,475.11/20,362.85
  6. Step 6: Final answer
    x = 15,747.09

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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.