Home / 30,800.29-42,504.39-17,371.51

Finding the Fourth Proportional to 30,800.29, 42,504.39 and 17,371.51

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Solution

The fourth proportional to 30,800.29, 42,504.39 and 17,371.51 is: 23,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,800.29 : 42,504.39 = 17,371.51 : x
  2. Step 2: Convert to fraction form
    30,800.29/42,504.39 = 17,371.51/x
  3. Step 3: Cross multiply
    30,800.29x = 42,504.39 × 17,371.51
  4. Step 4: Simplify right side
    30,800.29x = 738,365,423.92
  5. Step 5: Solve for x
    x = 738,365,423.92/30,800.29
  6. Step 6: Final answer
    x = 23,972.68

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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.