Home / 28,975.28-39,988.44-16,228.26

Finding the Fourth Proportional to 28,975.28, 39,988.44 and 16,228.26

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Solution

The fourth proportional to 28,975.28, 39,988.44 and 16,228.26 is: 22,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.28 : 39,988.44 = 16,228.26 : x
  2. Step 2: Convert to fraction form
    28,975.28/39,988.44 = 16,228.26/x
  3. Step 3: Cross multiply
    28,975.28x = 39,988.44 × 16,228.26
  4. Step 4: Simplify right side
    28,975.28x = 648,942,801.31
  5. Step 5: Solve for x
    x = 648,942,801.31/28,975.28
  6. Step 6: Final answer
    x = 22,396.43

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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.