Home / 34,905.75-48,169.69-18,990.26

Finding the Fourth Proportional to 34,905.75, 48,169.69 and 18,990.26

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Solution

The fourth proportional to 34,905.75, 48,169.69 and 18,990.26 is: 26,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,905.75 : 48,169.69 = 18,990.26 : x
  2. Step 2: Convert to fraction form
    34,905.75/48,169.69 = 18,990.26/x
  3. Step 3: Cross multiply
    34,905.75x = 48,169.69 × 18,990.26
  4. Step 4: Simplify right side
    34,905.75x = 914,754,937.22
  5. Step 5: Solve for x
    x = 914,754,937.22/34,905.75
  6. Step 6: Final answer
    x = 26,206.43

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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.