Home / 27,135.45-37,451.56-15,811.66

Finding the Fourth Proportional to 27,135.45, 37,451.56 and 15,811.66

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Solution

The fourth proportional to 27,135.45, 37,451.56 and 15,811.66 is: 21,822.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.45 : 37,451.56 = 15,811.66 : x
  2. Step 2: Convert to fraction form
    27,135.45/37,451.56 = 15,811.66/x
  3. Step 3: Cross multiply
    27,135.45x = 37,451.56 × 15,811.66
  4. Step 4: Simplify right side
    27,135.45x = 592,171,200.03
  5. Step 5: Solve for x
    x = 592,171,200.03/27,135.45
  6. Step 6: Final answer
    x = 21,822.79

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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.