Home / 34,219.39-51,420.21-18,436.54

Finding the Fourth Proportional to 34,219.39, 51,420.21 and 18,436.54

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Solution

The fourth proportional to 34,219.39, 51,420.21 and 18,436.54 is: 27,703.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,219.39 : 51,420.21 = 18,436.54 : x
  2. Step 2: Convert to fraction form
    34,219.39/51,420.21 = 18,436.54/x
  3. Step 3: Cross multiply
    34,219.39x = 51,420.21 × 18,436.54
  4. Step 4: Simplify right side
    34,219.39x = 948,010,758.47
  5. Step 5: Solve for x
    x = 948,010,758.47/34,219.39
  6. Step 6: Final answer
    x = 27,703.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.