Home / 19,631.36-27,101.32-15,145.04

Finding the Fourth Proportional to 19,631.36, 27,101.32 and 15,145.04

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Solution

The fourth proportional to 19,631.36, 27,101.32 and 15,145.04 is: 20,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.36 : 27,101.32 = 15,145.04 : x
  2. Step 2: Convert to fraction form
    19,631.36/27,101.32 = 15,145.04/x
  3. Step 3: Cross multiply
    19,631.36x = 27,101.32 × 15,145.04
  4. Step 4: Simplify right side
    19,631.36x = 410,450,575.45
  5. Step 5: Solve for x
    x = 410,450,575.45/19,631.36
  6. Step 6: Final answer
    x = 20,907.90

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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.