Home / 27,525.20-37,947.96-21,878.69

Finding the Fourth Proportional to 27,525.20, 37,947.96 and 21,878.69

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Solution

The fourth proportional to 27,525.20, 37,947.96 and 21,878.69 is: 30,163.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,525.20 : 37,947.96 = 21,878.69 : x
  2. Step 2: Convert to fraction form
    27,525.20/37,947.96 = 21,878.69/x
  3. Step 3: Cross multiply
    27,525.20x = 37,947.96 × 21,878.69
  4. Step 4: Simplify right side
    27,525.20x = 830,251,463.23
  5. Step 5: Solve for x
    x = 830,251,463.23/27,525.20
  6. Step 6: Final answer
    x = 30,163.33

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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.