Home / 27,288.86-37,660.80-15,351.48

Finding the Fourth Proportional to 27,288.86, 37,660.80 and 15,351.48

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Solution

The fourth proportional to 27,288.86, 37,660.80 and 15,351.48 is: 21,186.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,288.86 : 37,660.80 = 15,351.48 : x
  2. Step 2: Convert to fraction form
    27,288.86/37,660.80 = 15,351.48/x
  3. Step 3: Cross multiply
    27,288.86x = 37,660.80 × 15,351.48
  4. Step 4: Simplify right side
    27,288.86x = 578,149,017.98
  5. Step 5: Solve for x
    x = 578,149,017.98/27,288.86
  6. Step 6: Final answer
    x = 21,186.26

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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.