Home / 19,721.48-27,215.42-10,769.36

Finding the Fourth Proportional to 19,721.48, 27,215.42 and 10,769.36

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Solution

The fourth proportional to 19,721.48, 27,215.42 and 10,769.36 is: 14,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.48 : 27,215.42 = 10,769.36 : x
  2. Step 2: Convert to fraction form
    19,721.48/27,215.42 = 10,769.36/x
  3. Step 3: Cross multiply
    19,721.48x = 27,215.42 × 10,769.36
  4. Step 4: Simplify right side
    19,721.48x = 293,092,465.61
  5. Step 5: Solve for x
    x = 293,092,465.61/19,721.48
  6. Step 6: Final answer
    x = 14,861.59

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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.