Home / 19,643.47-27,107.61-10,691.17

Finding the Fourth Proportional to 19,643.47, 27,107.61 and 10,691.17

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Solution

The fourth proportional to 19,643.47, 27,107.61 and 10,691.17 is: 14,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.47 : 27,107.61 = 10,691.17 : x
  2. Step 2: Convert to fraction form
    19,643.47/27,107.61 = 10,691.17/x
  3. Step 3: Cross multiply
    19,643.47x = 27,107.61 × 10,691.17
  4. Step 4: Simplify right side
    19,643.47x = 289,812,066.80
  5. Step 5: Solve for x
    x = 289,812,066.80/19,643.47
  6. Step 6: Final answer
    x = 14,753.61

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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.