Home / 20,045.78-27,665.58-11,662.28

Finding the Fourth Proportional to 20,045.78, 27,665.58 and 11,662.28

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Solution

The fourth proportional to 20,045.78, 27,665.58 and 11,662.28 is: 16,095.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.78 : 27,665.58 = 11,662.28 : x
  2. Step 2: Convert to fraction form
    20,045.78/27,665.58 = 11,662.28/x
  3. Step 3: Cross multiply
    20,045.78x = 27,665.58 × 11,662.28
  4. Step 4: Simplify right side
    20,045.78x = 322,643,740.32
  5. Step 5: Solve for x
    x = 322,643,740.32/20,045.78
  6. Step 6: Final answer
    x = 16,095.34

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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.