Home / 28,083.56-42,124.53-11,439.48

Finding the Fourth Proportional to 28,083.56, 42,124.53 and 11,439.48

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Solution

The fourth proportional to 28,083.56, 42,124.53 and 11,439.48 is: 17,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.56 : 42,124.53 = 11,439.48 : x
  2. Step 2: Convert to fraction form
    28,083.56/42,124.53 = 11,439.48/x
  3. Step 3: Cross multiply
    28,083.56x = 42,124.53 × 11,439.48
  4. Step 4: Simplify right side
    28,083.56x = 481,882,718.44
  5. Step 5: Solve for x
    x = 481,882,718.44/28,083.56
  6. Step 6: Final answer
    x = 17,158.89

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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.