Home / 30,143.30-41,588.29-17,394.81

Finding the Fourth Proportional to 30,143.30, 41,588.29 and 17,394.81

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Solution

The fourth proportional to 30,143.30, 41,588.29 and 17,394.81 is: 23,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.30 : 41,588.29 = 17,394.81 : x
  2. Step 2: Convert to fraction form
    30,143.30/41,588.29 = 17,394.81/x
  3. Step 3: Cross multiply
    30,143.30x = 41,588.29 × 17,394.81
  4. Step 4: Simplify right side
    30,143.30x = 723,420,315.80
  5. Step 5: Solve for x
    x = 723,420,315.80/30,143.30
  6. Step 6: Final answer
    x = 23,999.37

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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.