Home / 28,361.83-39,135.93-16,423.54

Finding the Fourth Proportional to 28,361.83, 39,135.93 and 16,423.54

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Solution

The fourth proportional to 28,361.83, 39,135.93 and 16,423.54 is: 22,662.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.83 : 39,135.93 = 16,423.54 : x
  2. Step 2: Convert to fraction form
    28,361.83/39,135.93 = 16,423.54/x
  3. Step 3: Cross multiply
    28,361.83x = 39,135.93 × 16,423.54
  4. Step 4: Simplify right side
    28,361.83x = 642,750,711.08
  5. Step 5: Solve for x
    x = 642,750,711.08/28,361.83
  6. Step 6: Final answer
    x = 22,662.53

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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.