Home / 19,640.73-27,104.30-10,688.17

Finding the Fourth Proportional to 19,640.73, 27,104.30 and 10,688.17

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Solution

The fourth proportional to 19,640.73, 27,104.30 and 10,688.17 is: 14,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.73 : 27,104.30 = 10,688.17 : x
  2. Step 2: Convert to fraction form
    19,640.73/27,104.30 = 10,688.17/x
  3. Step 3: Cross multiply
    19,640.73x = 27,104.30 × 10,688.17
  4. Step 4: Simplify right side
    19,640.73x = 289,695,366.13
  5. Step 5: Solve for x
    x = 289,695,366.13/19,640.73
  6. Step 6: Final answer
    x = 14,749.72

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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.