Home / 13,830.35-20,724.51-10,135.02

Finding the Fourth Proportional to 13,830.35, 20,724.51 and 10,135.02

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Solution

The fourth proportional to 13,830.35, 20,724.51 and 10,135.02 is: 15,187.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.35 : 20,724.51 = 10,135.02 : x
  2. Step 2: Convert to fraction form
    13,830.35/20,724.51 = 10,135.02/x
  3. Step 3: Cross multiply
    13,830.35x = 20,724.51 × 10,135.02
  4. Step 4: Simplify right side
    13,830.35x = 210,043,382.05
  5. Step 5: Solve for x
    x = 210,043,382.05/13,830.35
  6. Step 6: Final answer
    x = 15,187.14

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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.