Home / 28,406.22-39,198.26-16,470.32

Finding the Fourth Proportional to 28,406.22, 39,198.26 and 16,470.32

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Solution

The fourth proportional to 28,406.22, 39,198.26 and 16,470.32 is: 22,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.22 : 39,198.26 = 16,470.32 : x
  2. Step 2: Convert to fraction form
    28,406.22/39,198.26 = 16,470.32/x
  3. Step 3: Cross multiply
    28,406.22x = 39,198.26 × 16,470.32
  4. Step 4: Simplify right side
    28,406.22x = 645,607,885.64
  5. Step 5: Solve for x
    x = 645,607,885.64/28,406.22
  6. Step 6: Final answer
    x = 22,727.70

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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.