Home / 19,603.28-27,049.38-12,891.62

Finding the Fourth Proportional to 19,603.28, 27,049.38 and 12,891.62

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Solution

The fourth proportional to 19,603.28, 27,049.38 and 12,891.62 is: 17,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.28 : 27,049.38 = 12,891.62 : x
  2. Step 2: Convert to fraction form
    19,603.28/27,049.38 = 12,891.62/x
  3. Step 3: Cross multiply
    19,603.28x = 27,049.38 × 12,891.62
  4. Step 4: Simplify right side
    19,603.28x = 348,710,192.95
  5. Step 5: Solve for x
    x = 348,710,192.95/19,603.28
  6. Step 6: Final answer
    x = 17,788.36

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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.