Home / 27,375.84-37,788.87-21,314.07

Finding the Fourth Proportional to 27,375.84, 37,788.87 and 21,314.07

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Solution

The fourth proportional to 27,375.84, 37,788.87 and 21,314.07 is: 29,421.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,375.84 : 37,788.87 = 21,314.07 : x
  2. Step 2: Convert to fraction form
    27,375.84/37,788.87 = 21,314.07/x
  3. Step 3: Cross multiply
    27,375.84x = 37,788.87 × 21,314.07
  4. Step 4: Simplify right side
    27,375.84x = 805,434,620.40
  5. Step 5: Solve for x
    x = 805,434,620.40/27,375.84
  6. Step 6: Final answer
    x = 29,421.37

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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.