Home / 27,768.58-38,322.72-15,832.20

Finding the Fourth Proportional to 27,768.58, 38,322.72 and 15,832.20

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Solution

The fourth proportional to 27,768.58, 38,322.72 and 15,832.20 is: 21,849.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,768.58 : 38,322.72 = 15,832.20 : x
  2. Step 2: Convert to fraction form
    27,768.58/38,322.72 = 15,832.20/x
  3. Step 3: Cross multiply
    27,768.58x = 38,322.72 × 15,832.20
  4. Step 4: Simplify right side
    27,768.58x = 606,732,967.58
  5. Step 5: Solve for x
    x = 606,732,967.58/27,768.58
  6. Step 6: Final answer
    x = 21,849.62

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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.