Home / 27,389.38-37,788.51-21,628.56

Finding the Fourth Proportional to 27,389.38, 37,788.51 and 21,628.56

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Solution

The fourth proportional to 27,389.38, 37,788.51 and 21,628.56 is: 29,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,389.38 : 37,788.51 = 21,628.56 : x
  2. Step 2: Convert to fraction form
    27,389.38/37,788.51 = 21,628.56/x
  3. Step 3: Cross multiply
    27,389.38x = 37,788.51 × 21,628.56
  4. Step 4: Simplify right side
    27,389.38x = 817,311,055.85
  5. Step 5: Solve for x
    x = 817,311,055.85/27,389.38
  6. Step 6: Final answer
    x = 29,840.44

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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.