Home / 34,161.21-47,164.41-21,431.84

Finding the Fourth Proportional to 34,161.21, 47,164.41 and 21,431.84

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Solution

The fourth proportional to 34,161.21, 47,164.41 and 21,431.84 is: 29,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,161.21 : 47,164.41 = 21,431.84 : x
  2. Step 2: Convert to fraction form
    34,161.21/47,164.41 = 21,431.84/x
  3. Step 3: Cross multiply
    34,161.21x = 47,164.41 × 21,431.84
  4. Step 4: Simplify right side
    34,161.21x = 1,010,819,852.99
  5. Step 5: Solve for x
    x = 1,010,819,852.99/34,161.21
  6. Step 6: Final answer
    x = 29,589.70

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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.