Home / 28,145.76-42,185.92-10,604.48

Finding the Fourth Proportional to 28,145.76, 42,185.92 and 10,604.48

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Solution

The fourth proportional to 28,145.76, 42,185.92 and 10,604.48 is: 15,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.76 : 42,185.92 = 10,604.48 : x
  2. Step 2: Convert to fraction form
    28,145.76/42,185.92 = 10,604.48/x
  3. Step 3: Cross multiply
    28,145.76x = 42,185.92 × 10,604.48
  4. Step 4: Simplify right side
    28,145.76x = 447,359,744.92
  5. Step 5: Solve for x
    x = 447,359,744.92/28,145.76
  6. Step 6: Final answer
    x = 15,894.39

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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.