Home / 28,203.42-38,920.73-16,873.40

Finding the Fourth Proportional to 28,203.42, 38,920.73 and 16,873.40

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Solution

The fourth proportional to 28,203.42, 38,920.73 and 16,873.40 is: 23,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.42 : 38,920.73 = 16,873.40 : x
  2. Step 2: Convert to fraction form
    28,203.42/38,920.73 = 16,873.40/x
  3. Step 3: Cross multiply
    28,203.42x = 38,920.73 × 16,873.40
  4. Step 4: Simplify right side
    28,203.42x = 656,724,766.61
  5. Step 5: Solve for x
    x = 656,724,766.61/28,203.42
  6. Step 6: Final answer
    x = 23,285.29

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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.