Home / 19,720.82-27,214.56-10,768.28

Finding the Fourth Proportional to 19,720.82, 27,214.56 and 10,768.28

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Solution

The fourth proportional to 19,720.82, 27,214.56 and 10,768.28 is: 14,860.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.82 : 27,214.56 = 10,768.28 : x
  2. Step 2: Convert to fraction form
    19,720.82/27,214.56 = 10,768.28/x
  3. Step 3: Cross multiply
    19,720.82x = 27,214.56 × 10,768.28
  4. Step 4: Simplify right side
    19,720.82x = 293,054,002.16
  5. Step 5: Solve for x
    x = 293,054,002.16/19,720.82
  6. Step 6: Final answer
    x = 14,860.13

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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.