Home / 28,967.22-39,975.38-16,391.98

Finding the Fourth Proportional to 28,967.22, 39,975.38 and 16,391.98

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Solution

The fourth proportional to 28,967.22, 39,975.38 and 16,391.98 is: 22,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.22 : 39,975.38 = 16,391.98 : x
  2. Step 2: Convert to fraction form
    28,967.22/39,975.38 = 16,391.98/x
  3. Step 3: Cross multiply
    28,967.22x = 39,975.38 × 16,391.98
  4. Step 4: Simplify right side
    28,967.22x = 655,275,629.45
  5. Step 5: Solve for x
    x = 655,275,629.45/28,967.22
  6. Step 6: Final answer
    x = 22,621.28

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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.