Home / 30,223.48-41,711.22-18,289.76

Finding the Fourth Proportional to 30,223.48, 41,711.22 and 18,289.76

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Solution

The fourth proportional to 30,223.48, 41,711.22 and 18,289.76 is: 25,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.48 : 41,711.22 = 18,289.76 : x
  2. Step 2: Convert to fraction form
    30,223.48/41,711.22 = 18,289.76/x
  3. Step 3: Cross multiply
    30,223.48x = 41,711.22 × 18,289.76
  4. Step 4: Simplify right side
    30,223.48x = 762,888,203.11
  5. Step 5: Solve for x
    x = 762,888,203.11/30,223.48
  6. Step 6: Final answer
    x = 25,241.57

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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.