Home / 27,756.33-38,294.41-15,811.22

Finding the Fourth Proportional to 27,756.33, 38,294.41 and 15,811.22

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Solution

The fourth proportional to 27,756.33, 38,294.41 and 15,811.22 is: 21,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.33 : 38,294.41 = 15,811.22 : x
  2. Step 2: Convert to fraction form
    27,756.33/38,294.41 = 15,811.22/x
  3. Step 3: Cross multiply
    27,756.33x = 38,294.41 × 15,811.22
  4. Step 4: Simplify right side
    27,756.33x = 605,481,341.28
  5. Step 5: Solve for x
    x = 605,481,341.28/27,756.33
  6. Step 6: Final answer
    x = 21,814.17

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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.