Home / 22,269.60-30,734.64-12,838.50

Finding the Fourth Proportional to 22,269.60, 30,734.64 and 12,838.50

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Solution

The fourth proportional to 22,269.60, 30,734.64 and 12,838.50 is: 17,718.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.60 : 30,734.64 = 12,838.50 : x
  2. Step 2: Convert to fraction form
    22,269.60/30,734.64 = 12,838.50/x
  3. Step 3: Cross multiply
    22,269.60x = 30,734.64 × 12,838.50
  4. Step 4: Simplify right side
    22,269.60x = 394,586,675.64
  5. Step 5: Solve for x
    x = 394,586,675.64/22,269.60
  6. Step 6: Final answer
    x = 17,718.62

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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.