Home / 28,525.20-42,797.93-12,728.79

Finding the Fourth Proportional to 28,525.20, 42,797.93 and 12,728.79

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Solution

The fourth proportional to 28,525.20, 42,797.93 and 12,728.79 is: 19,097.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.20 : 42,797.93 = 12,728.79 : x
  2. Step 2: Convert to fraction form
    28,525.20/42,797.93 = 12,728.79/x
  3. Step 3: Cross multiply
    28,525.20x = 42,797.93 × 12,728.79
  4. Step 4: Simplify right side
    28,525.20x = 544,765,871.36
  5. Step 5: Solve for x
    x = 544,765,871.36/28,525.20
  6. Step 6: Final answer
    x = 19,097.71

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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.