Home / 27,321.07-37,703.03-15,384.49

Finding the Fourth Proportional to 27,321.07, 37,703.03 and 15,384.49

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Solution

The fourth proportional to 27,321.07, 37,703.03 and 15,384.49 is: 21,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.07 : 37,703.03 = 15,384.49 : x
  2. Step 2: Convert to fraction form
    27,321.07/37,703.03 = 15,384.49/x
  3. Step 3: Cross multiply
    27,321.07x = 37,703.03 × 15,384.49
  4. Step 4: Simplify right side
    27,321.07x = 580,042,079.02
  5. Step 5: Solve for x
    x = 580,042,079.02/27,321.07
  6. Step 6: Final answer
    x = 21,230.58

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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.