Home / 20,272.60-27,868.79-17,429.50

Finding the Fourth Proportional to 20,272.60, 27,868.79 and 17,429.50

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Solution

The fourth proportional to 20,272.60, 27,868.79 and 17,429.50 is: 23,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.60 : 27,868.79 = 17,429.50 : x
  2. Step 2: Convert to fraction form
    20,272.60/27,868.79 = 17,429.50/x
  3. Step 3: Cross multiply
    20,272.60x = 27,868.79 × 17,429.50
  4. Step 4: Simplify right side
    20,272.60x = 485,739,075.31
  5. Step 5: Solve for x
    x = 485,739,075.31/20,272.60
  6. Step 6: Final answer
    x = 23,960.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.