Home / 19,820.11-27,351.54-10,867.59

Finding the Fourth Proportional to 19,820.11, 27,351.54 and 10,867.59

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Solution

The fourth proportional to 19,820.11, 27,351.54 and 10,867.59 is: 14,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.11 : 27,351.54 = 10,867.59 : x
  2. Step 2: Convert to fraction form
    19,820.11/27,351.54 = 10,867.59/x
  3. Step 3: Cross multiply
    19,820.11x = 27,351.54 × 10,867.59
  4. Step 4: Simplify right side
    19,820.11x = 297,245,322.59
  5. Step 5: Solve for x
    x = 297,245,322.59/19,820.11
  6. Step 6: Final answer
    x = 14,997.16

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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.