Home / 20,624.28-28,460.73-11,192.64

Finding the Fourth Proportional to 20,624.28, 28,460.73 and 11,192.64

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Solution

The fourth proportional to 20,624.28, 28,460.73 and 11,192.64 is: 15,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.28 : 28,460.73 = 11,192.64 : x
  2. Step 2: Convert to fraction form
    20,624.28/28,460.73 = 11,192.64/x
  3. Step 3: Cross multiply
    20,624.28x = 28,460.73 × 11,192.64
  4. Step 4: Simplify right side
    20,624.28x = 318,550,705.03
  5. Step 5: Solve for x
    x = 318,550,705.03/20,624.28
  6. Step 6: Final answer
    x = 15,445.42

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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.