Home / 28,553.85-39,367.62-18,464.49

Finding the Fourth Proportional to 28,553.85, 39,367.62 and 18,464.49

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Solution

The fourth proportional to 28,553.85, 39,367.62 and 18,464.49 is: 25,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.85 : 39,367.62 = 18,464.49 : x
  2. Step 2: Convert to fraction form
    28,553.85/39,367.62 = 18,464.49/x
  3. Step 3: Cross multiply
    28,553.85x = 39,367.62 × 18,464.49
  4. Step 4: Simplify right side
    28,553.85x = 726,903,025.81
  5. Step 5: Solve for x
    x = 726,903,025.81/28,553.85
  6. Step 6: Final answer
    x = 25,457.27

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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.