Home / 28,239.50-38,967.23-16,907.42

Finding the Fourth Proportional to 28,239.50, 38,967.23 and 16,907.42

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Solution

The fourth proportional to 28,239.50, 38,967.23 and 16,907.42 is: 23,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.50 : 38,967.23 = 16,907.42 : x
  2. Step 2: Convert to fraction form
    28,239.50/38,967.23 = 16,907.42/x
  3. Step 3: Cross multiply
    28,239.50x = 38,967.23 × 16,907.42
  4. Step 4: Simplify right side
    28,239.50x = 658,835,323.85
  5. Step 5: Solve for x
    x = 658,835,323.85/28,239.50
  6. Step 6: Final answer
    x = 23,330.28

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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.