Home / 34,720.36-47,914.32-18,805

Finding the Fourth Proportional to 34,720.36, 47,914.32 and 18,805

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Solution

The fourth proportional to 34,720.36, 47,914.32 and 18,805 is: 25,951.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,720.36 : 47,914.32 = 18,805 : x
  2. Step 2: Convert to fraction form
    34,720.36/47,914.32 = 18,805/x
  3. Step 3: Cross multiply
    34,720.36x = 47,914.32 × 18,805
  4. Step 4: Simplify right side
    34,720.36x = 901,028,787.60
  5. Step 5: Solve for x
    x = 901,028,787.60/34,720.36
  6. Step 6: Final answer
    x = 25,951.02

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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.