Home / 20,358.73-28,094.72-11,406.18

Finding the Fourth Proportional to 20,358.73, 28,094.72 and 11,406.18

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Solution

The fourth proportional to 20,358.73, 28,094.72 and 11,406.18 is: 15,740.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.73 : 28,094.72 = 11,406.18 : x
  2. Step 2: Convert to fraction form
    20,358.73/28,094.72 = 11,406.18/x
  3. Step 3: Cross multiply
    20,358.73x = 28,094.72 × 11,406.18
  4. Step 4: Simplify right side
    20,358.73x = 320,453,235.87
  5. Step 5: Solve for x
    x = 320,453,235.87/20,358.73
  6. Step 6: Final answer
    x = 15,740.34

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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.