Home / 19,643.32-27,115.68-13,359.52

Finding the Fourth Proportional to 19,643.32, 27,115.68 and 13,359.52

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Solution

The fourth proportional to 19,643.32, 27,115.68 and 13,359.52 is: 18,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.32 : 27,115.68 = 13,359.52 : x
  2. Step 2: Convert to fraction form
    19,643.32/27,115.68 = 13,359.52/x
  3. Step 3: Cross multiply
    19,643.32x = 27,115.68 × 13,359.52
  4. Step 4: Simplify right side
    19,643.32x = 362,252,469.27
  5. Step 5: Solve for x
    x = 362,252,469.27/19,643.32
  6. Step 6: Final answer
    x = 18,441.51

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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.