Home / 30,431.52-41,993.10-17,001.72

Finding the Fourth Proportional to 30,431.52, 41,993.10 and 17,001.72

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Solution

The fourth proportional to 30,431.52, 41,993.10 and 17,001.72 is: 23,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,431.52 : 41,993.10 = 17,001.72 : x
  2. Step 2: Convert to fraction form
    30,431.52/41,993.10 = 17,001.72/x
  3. Step 3: Cross multiply
    30,431.52x = 41,993.10 × 17,001.72
  4. Step 4: Simplify right side
    30,431.52x = 713,954,928.13
  5. Step 5: Solve for x
    x = 713,954,928.13/30,431.52
  6. Step 6: Final answer
    x = 23,461.03

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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.