Home / 30,800.41-42,503.70-17,371.54

Finding the Fourth Proportional to 30,800.41, 42,503.70 and 17,371.54

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Solution

The fourth proportional to 30,800.41, 42,503.70 and 17,371.54 is: 23,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,800.41 : 42,503.70 = 17,371.54 : x
  2. Step 2: Convert to fraction form
    30,800.41/42,503.70 = 17,371.54/x
  3. Step 3: Cross multiply
    30,800.41x = 42,503.70 × 17,371.54
  4. Step 4: Simplify right side
    30,800.41x = 738,354,724.70
  5. Step 5: Solve for x
    x = 738,354,724.70/30,800.41
  6. Step 6: Final answer
    x = 23,972.24

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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.