Home / 19,721.54-27,215.61-10,769.04

Finding the Fourth Proportional to 19,721.54, 27,215.61 and 10,769.04

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Solution

The fourth proportional to 19,721.54, 27,215.61 and 10,769.04 is: 14,861.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.54 : 27,215.61 = 10,769.04 : x
  2. Step 2: Convert to fraction form
    19,721.54/27,215.61 = 10,769.04/x
  3. Step 3: Cross multiply
    19,721.54x = 27,215.61 × 10,769.04
  4. Step 4: Simplify right side
    19,721.54x = 293,085,992.71
  5. Step 5: Solve for x
    x = 293,085,992.71/19,721.54
  6. Step 6: Final answer
    x = 14,861.22

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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.