Home / 34,218.39-51,418.70-18,435.54

Finding the Fourth Proportional to 34,218.39, 51,418.70 and 18,435.54

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Solution

The fourth proportional to 34,218.39, 51,418.70 and 18,435.54 is: 27,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.39 : 51,418.70 = 18,435.54 : x
  2. Step 2: Convert to fraction form
    34,218.39/51,418.70 = 18,435.54/x
  3. Step 3: Cross multiply
    34,218.39x = 51,418.70 × 18,435.54
  4. Step 4: Simplify right side
    34,218.39x = 947,931,388.43
  5. Step 5: Solve for x
    x = 947,931,388.43/34,218.39
  6. Step 6: Final answer
    x = 27,702.40

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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.