Home / 28,615.15-42,932.06-13,825.76

Finding the Fourth Proportional to 28,615.15, 42,932.06 and 13,825.76

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Solution

The fourth proportional to 28,615.15, 42,932.06 and 13,825.76 is: 20,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.15 : 42,932.06 = 13,825.76 : x
  2. Step 2: Convert to fraction form
    28,615.15/42,932.06 = 13,825.76/x
  3. Step 3: Cross multiply
    28,615.15x = 42,932.06 × 13,825.76
  4. Step 4: Simplify right side
    28,615.15x = 593,568,357.87
  5. Step 5: Solve for x
    x = 593,568,357.87/28,615.15
  6. Step 6: Final answer
    x = 20,743.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.