Home / 30,721.56-42,387.26-17,292.03

Finding the Fourth Proportional to 30,721.56, 42,387.26 and 17,292.03

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Solution

The fourth proportional to 30,721.56, 42,387.26 and 17,292.03 is: 23,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,721.56 : 42,387.26 = 17,292.03 : x
  2. Step 2: Convert to fraction form
    30,721.56/42,387.26 = 17,292.03/x
  3. Step 3: Cross multiply
    30,721.56x = 42,387.26 × 17,292.03
  4. Step 4: Simplify right side
    30,721.56x = 732,961,771.54
  5. Step 5: Solve for x
    x = 732,961,771.54/30,721.56
  6. Step 6: Final answer
    x = 23,858.22

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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.