Home / 19,689.20-27,173.52-11,305.52

Finding the Fourth Proportional to 19,689.20, 27,173.52 and 11,305.52

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Solution

The fourth proportional to 19,689.20, 27,173.52 and 11,305.52 is: 15,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.20 : 27,173.52 = 11,305.52 : x
  2. Step 2: Convert to fraction form
    19,689.20/27,173.52 = 11,305.52/x
  3. Step 3: Cross multiply
    19,689.20x = 27,173.52 × 11,305.52
  4. Step 4: Simplify right side
    19,689.20x = 307,210,773.83
  5. Step 5: Solve for x
    x = 307,210,773.83/19,689.20
  6. Step 6: Final answer
    x = 15,603.01

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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.