Home / 30,975.29-42,743.25-17,178.07

Finding the Fourth Proportional to 30,975.29, 42,743.25 and 17,178.07

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Solution

The fourth proportional to 30,975.29, 42,743.25 and 17,178.07 is: 23,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.29 : 42,743.25 = 17,178.07 : x
  2. Step 2: Convert to fraction form
    30,975.29/42,743.25 = 17,178.07/x
  3. Step 3: Cross multiply
    30,975.29x = 42,743.25 × 17,178.07
  4. Step 4: Simplify right side
    30,975.29x = 734,246,487.35
  5. Step 5: Solve for x
    x = 734,246,487.35/30,975.29
  6. Step 6: Final answer
    x = 23,704.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.