Home / 30,623.80-42,257.70-17,196.54

Finding the Fourth Proportional to 30,623.80, 42,257.70 and 17,196.54

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Solution

The fourth proportional to 30,623.80, 42,257.70 and 17,196.54 is: 23,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,623.80 : 42,257.70 = 17,196.54 : x
  2. Step 2: Convert to fraction form
    30,623.80/42,257.70 = 17,196.54/x
  3. Step 3: Cross multiply
    30,623.80x = 42,257.70 × 17,196.54
  4. Step 4: Simplify right side
    30,623.80x = 726,686,228.36
  5. Step 5: Solve for x
    x = 726,686,228.36/30,623.80
  6. Step 6: Final answer
    x = 23,729.46

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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.