Home / 28,271.54-39,021.73-16,342.31

Finding the Fourth Proportional to 28,271.54, 39,021.73 and 16,342.31

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Solution

The fourth proportional to 28,271.54, 39,021.73 and 16,342.31 is: 22,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.54 : 39,021.73 = 16,342.31 : x
  2. Step 2: Convert to fraction form
    28,271.54/39,021.73 = 16,342.31/x
  3. Step 3: Cross multiply
    28,271.54x = 39,021.73 × 16,342.31
  4. Step 4: Simplify right side
    28,271.54x = 637,704,972.43
  5. Step 5: Solve for x
    x = 637,704,972.43/28,271.54
  6. Step 6: Final answer
    x = 22,556.43

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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.