Home / 30,623.85-42,260.76-17,195.31

Finding the Fourth Proportional to 30,623.85, 42,260.76 and 17,195.31

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Solution

The fourth proportional to 30,623.85, 42,260.76 and 17,195.31 is: 23,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,623.85 : 42,260.76 = 17,195.31 : x
  2. Step 2: Convert to fraction form
    30,623.85/42,260.76 = 17,195.31/x
  3. Step 3: Cross multiply
    30,623.85x = 42,260.76 × 17,195.31
  4. Step 4: Simplify right side
    30,623.85x = 726,686,869.04
  5. Step 5: Solve for x
    x = 726,686,869.04/30,623.85
  6. Step 6: Final answer
    x = 23,729.44

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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.