Home / 28,926.80-39,918.45-16,351.55

Finding the Fourth Proportional to 28,926.80, 39,918.45 and 16,351.55

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Solution

The fourth proportional to 28,926.80, 39,918.45 and 16,351.55 is: 22,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.80 : 39,918.45 = 16,351.55 : x
  2. Step 2: Convert to fraction form
    28,926.80/39,918.45 = 16,351.55/x
  3. Step 3: Cross multiply
    28,926.80x = 39,918.45 × 16,351.55
  4. Step 4: Simplify right side
    28,926.80x = 652,728,542.52
  5. Step 5: Solve for x
    x = 652,728,542.52/28,926.80
  6. Step 6: Final answer
    x = 22,564.84

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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.