Home / 30,800.62-42,506.30-17,371.59

Finding the Fourth Proportional to 30,800.62, 42,506.30 and 17,371.59

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Solution

The fourth proportional to 30,800.62, 42,506.30 and 17,371.59 is: 23,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,800.62 : 42,506.30 = 17,371.59 : x
  2. Step 2: Convert to fraction form
    30,800.62/42,506.30 = 17,371.59/x
  3. Step 3: Cross multiply
    30,800.62x = 42,506.30 × 17,371.59
  4. Step 4: Simplify right side
    30,800.62x = 738,402,016.02
  5. Step 5: Solve for x
    x = 738,402,016.02/30,800.62
  6. Step 6: Final answer
    x = 23,973.61

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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.