Home / 19,856.38-27,363.92-19,491.59

Finding the Fourth Proportional to 19,856.38, 27,363.92 and 19,491.59

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Solution

The fourth proportional to 19,856.38, 27,363.92 and 19,491.59 is: 26,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.38 : 27,363.92 = 19,491.59 : x
  2. Step 2: Convert to fraction form
    19,856.38/27,363.92 = 19,491.59/x
  3. Step 3: Cross multiply
    19,856.38x = 27,363.92 × 19,491.59
  4. Step 4: Simplify right side
    19,856.38x = 533,366,313.06
  5. Step 5: Solve for x
    x = 533,366,313.06/19,856.38
  6. Step 6: Final answer
    x = 26,861.20

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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.