Home / 19,643.24-27,108.23-10,691.31

Finding the Fourth Proportional to 19,643.24, 27,108.23 and 10,691.31

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Solution

The fourth proportional to 19,643.24, 27,108.23 and 10,691.31 is: 14,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.24 : 27,108.23 = 10,691.31 : x
  2. Step 2: Convert to fraction form
    19,643.24/27,108.23 = 10,691.31/x
  3. Step 3: Cross multiply
    19,643.24x = 27,108.23 × 10,691.31
  4. Step 4: Simplify right side
    19,643.24x = 289,822,437.02
  5. Step 5: Solve for x
    x = 289,822,437.02/19,643.24
  6. Step 6: Final answer
    x = 14,754.31

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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.