Home / 19,721.36-27,215.47-10,768.90

Finding the Fourth Proportional to 19,721.36, 27,215.47 and 10,768.90

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Solution

The fourth proportional to 19,721.36, 27,215.47 and 10,768.90 is: 14,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.36 : 27,215.47 = 10,768.90 : x
  2. Step 2: Convert to fraction form
    19,721.36/27,215.47 = 10,768.90/x
  3. Step 3: Cross multiply
    19,721.36x = 27,215.47 × 10,768.90
  4. Step 4: Simplify right side
    19,721.36x = 293,080,674.88
  5. Step 5: Solve for x
    x = 293,080,674.88/19,721.36
  6. Step 6: Final answer
    x = 14,861.08

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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.