Home / 27,388.72-37,795.73-15,451.12

Finding the Fourth Proportional to 27,388.72, 37,795.73 and 15,451.12

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Solution

The fourth proportional to 27,388.72, 37,795.73 and 15,451.12 is: 21,322.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,388.72 : 37,795.73 = 15,451.12 : x
  2. Step 2: Convert to fraction form
    27,388.72/37,795.73 = 15,451.12/x
  3. Step 3: Cross multiply
    27,388.72x = 37,795.73 × 15,451.12
  4. Step 4: Simplify right side
    27,388.72x = 583,986,359.72
  5. Step 5: Solve for x
    x = 583,986,359.72/27,388.72
  6. Step 6: Final answer
    x = 21,322.15

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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.