Home / 18,005.72-24,844.16-10,928.20

Finding the Fourth Proportional to 18,005.72, 24,844.16 and 10,928.20

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Solution

The fourth proportional to 18,005.72, 24,844.16 and 10,928.20 is: 15,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.72 : 24,844.16 = 10,928.20 : x
  2. Step 2: Convert to fraction form
    18,005.72/24,844.16 = 10,928.20/x
  3. Step 3: Cross multiply
    18,005.72x = 24,844.16 × 10,928.20
  4. Step 4: Simplify right side
    18,005.72x = 271,501,949.31
  5. Step 5: Solve for x
    x = 271,501,949.31/18,005.72
  6. Step 6: Final answer
    x = 15,078.65

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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.