Home / 18,730.32-28,090.56-5,579.16

Finding the Fourth Proportional to 18,730.32, 28,090.56 and 5,579.16

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Solution

The fourth proportional to 18,730.32, 28,090.56 and 5,579.16 is: 8,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.32 : 28,090.56 = 5,579.16 : x
  2. Step 2: Convert to fraction form
    18,730.32/28,090.56 = 5,579.16/x
  3. Step 3: Cross multiply
    18,730.32x = 28,090.56 × 5,579.16
  4. Step 4: Simplify right side
    18,730.32x = 156,721,728.73
  5. Step 5: Solve for x
    x = 156,721,728.73/18,730.32
  6. Step 6: Final answer
    x = 8,367.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.