Home / 28,399.50-39,189.68-16,297.42

Finding the Fourth Proportional to 28,399.50, 39,189.68 and 16,297.42

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Solution

The fourth proportional to 28,399.50, 39,189.68 and 16,297.42 is: 22,489.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,399.50 : 39,189.68 = 16,297.42 : x
  2. Step 2: Convert to fraction form
    28,399.50/39,189.68 = 16,297.42/x
  3. Step 3: Cross multiply
    28,399.50x = 39,189.68 × 16,297.42
  4. Step 4: Simplify right side
    28,399.50x = 638,690,674.63
  5. Step 5: Solve for x
    x = 638,690,674.63/28,399.50
  6. Step 6: Final answer
    x = 22,489.50

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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.