Home / 31,747.63-43,816.18-19,651.99

Finding the Fourth Proportional to 31,747.63, 43,816.18 and 19,651.99

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Solution

The fourth proportional to 31,747.63, 43,816.18 and 19,651.99 is: 27,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747.63 : 43,816.18 = 19,651.99 : x
  2. Step 2: Convert to fraction form
    31,747.63/43,816.18 = 19,651.99/x
  3. Step 3: Cross multiply
    31,747.63x = 43,816.18 × 19,651.99
  4. Step 4: Simplify right side
    31,747.63x = 861,075,131.20
  5. Step 5: Solve for x
    x = 861,075,131.20/31,747.63
  6. Step 6: Final answer
    x = 27,122.50

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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.