Home / 27,240.32-37,589.61-15,305.64

Finding the Fourth Proportional to 27,240.32, 37,589.61 and 15,305.64

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Solution

The fourth proportional to 27,240.32, 37,589.61 and 15,305.64 is: 21,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,240.32 : 37,589.61 = 15,305.64 : x
  2. Step 2: Convert to fraction form
    27,240.32/37,589.61 = 15,305.64/x
  3. Step 3: Cross multiply
    27,240.32x = 37,589.61 × 15,305.64
  4. Step 4: Simplify right side
    27,240.32x = 575,333,095.80
  5. Step 5: Solve for x
    x = 575,333,095.80/27,240.32
  6. Step 6: Final answer
    x = 21,120.65

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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.