Home / 38,270.10-57,405.16-11,975.08

Finding the Fourth Proportional to 38,270.10, 57,405.16 and 11,975.08

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Solution

The fourth proportional to 38,270.10, 57,405.16 and 11,975.08 is: 17,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,270.10 : 57,405.16 = 11,975.08 : x
  2. Step 2: Convert to fraction form
    38,270.10/57,405.16 = 11,975.08/x
  3. Step 3: Cross multiply
    38,270.10x = 57,405.16 × 11,975.08
  4. Step 4: Simplify right side
    38,270.10x = 687,431,383.41
  5. Step 5: Solve for x
    x = 687,431,383.41/38,270.10
  6. Step 6: Final answer
    x = 17,962.62

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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.