Home / 18,378.42-25,374.36-16,385.52

Finding the Fourth Proportional to 18,378.42, 25,374.36 and 16,385.52

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Solution

The fourth proportional to 18,378.42, 25,374.36 and 16,385.52 is: 22,622.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.42 : 25,374.36 = 16,385.52 : x
  2. Step 2: Convert to fraction form
    18,378.42/25,374.36 = 16,385.52/x
  3. Step 3: Cross multiply
    18,378.42x = 25,374.36 × 16,385.52
  4. Step 4: Simplify right side
    18,378.42x = 415,772,083.27
  5. Step 5: Solve for x
    x = 415,772,083.27/18,378.42
  6. Step 6: Final answer
    x = 22,622.84

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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.