Home / 28,096.90-42,158.42-12,299.84

Finding the Fourth Proportional to 28,096.90, 42,158.42 and 12,299.84

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Solution

The fourth proportional to 28,096.90, 42,158.42 and 12,299.84 is: 18,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,096.90 : 42,158.42 = 12,299.84 : x
  2. Step 2: Convert to fraction form
    28,096.90/42,158.42 = 12,299.84/x
  3. Step 3: Cross multiply
    28,096.90x = 42,158.42 × 12,299.84
  4. Step 4: Simplify right side
    28,096.90x = 518,541,752.58
  5. Step 5: Solve for x
    x = 518,541,752.58/28,096.90
  6. Step 6: Final answer
    x = 18,455.48

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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.