Home / 30,222.48-41,709.84-18,288.76

Finding the Fourth Proportional to 30,222.48, 41,709.84 and 18,288.76

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Solution

The fourth proportional to 30,222.48, 41,709.84 and 18,288.76 is: 25,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222.48 : 41,709.84 = 18,288.76 : x
  2. Step 2: Convert to fraction form
    30,222.48/41,709.84 = 18,288.76/x
  3. Step 3: Cross multiply
    30,222.48x = 41,709.84 × 18,288.76
  4. Step 4: Simplify right side
    30,222.48x = 762,821,253.40
  5. Step 5: Solve for x
    x = 762,821,253.40/30,222.48
  6. Step 6: Final answer
    x = 25,240.19

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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.