Home / 28,102.80-42,154.20-10,576.56

Finding the Fourth Proportional to 28,102.80, 42,154.20 and 10,576.56

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Solution

The fourth proportional to 28,102.80, 42,154.20 and 10,576.56 is: 15,864.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.80 : 42,154.20 = 10,576.56 : x
  2. Step 2: Convert to fraction form
    28,102.80/42,154.20 = 10,576.56/x
  3. Step 3: Cross multiply
    28,102.80x = 42,154.20 × 10,576.56
  4. Step 4: Simplify right side
    28,102.80x = 445,846,425.55
  5. Step 5: Solve for x
    x = 445,846,425.55/28,102.80
  6. Step 6: Final answer
    x = 15,864.84

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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.