Home / 18,579.45-25,641.44-10,620.16

Finding the Fourth Proportional to 18,579.45, 25,641.44 and 10,620.16

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Solution

The fourth proportional to 18,579.45, 25,641.44 and 10,620.16 is: 14,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.45 : 25,641.44 = 10,620.16 : x
  2. Step 2: Convert to fraction form
    18,579.45/25,641.44 = 10,620.16/x
  3. Step 3: Cross multiply
    18,579.45x = 25,641.44 × 10,620.16
  4. Step 4: Simplify right side
    18,579.45x = 272,316,195.43
  5. Step 5: Solve for x
    x = 272,316,195.43/18,579.45
  6. Step 6: Final answer
    x = 14,656.85

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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.