Home / 28,130.80-42,196.20-10,604.56

Finding the Fourth Proportional to 28,130.80, 42,196.20 and 10,604.56

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Solution

The fourth proportional to 28,130.80, 42,196.20 and 10,604.56 is: 15,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.80 : 42,196.20 = 10,604.56 : x
  2. Step 2: Convert to fraction form
    28,130.80/42,196.20 = 10,604.56/x
  3. Step 3: Cross multiply
    28,130.80x = 42,196.20 × 10,604.56
  4. Step 4: Simplify right side
    28,130.80x = 447,472,134.67
  5. Step 5: Solve for x
    x = 447,472,134.67/28,130.80
  6. Step 6: Final answer
    x = 15,906.84

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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.