Home / 27,130.08-40,662.72-15,427.20

Finding the Fourth Proportional to 27,130.08, 40,662.72 and 15,427.20

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Solution

The fourth proportional to 27,130.08, 40,662.72 and 15,427.20 is: 23,122.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,130.08 : 40,662.72 = 15,427.20 : x
  2. Step 2: Convert to fraction form
    27,130.08/40,662.72 = 15,427.20/x
  3. Step 3: Cross multiply
    27,130.08x = 40,662.72 × 15,427.20
  4. Step 4: Simplify right side
    27,130.08x = 627,311,913.98
  5. Step 5: Solve for x
    x = 627,311,913.98/27,130.08
  6. Step 6: Final answer
    x = 23,122.38

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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.