Home / 28,724.40-43,063.35-12,917.85

Finding the Fourth Proportional to 28,724.40, 43,063.35 and 12,917.85

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Solution

The fourth proportional to 28,724.40, 43,063.35 and 12,917.85 is: 19,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.40 : 43,063.35 = 12,917.85 : x
  2. Step 2: Convert to fraction form
    28,724.40/43,063.35 = 12,917.85/x
  3. Step 3: Cross multiply
    28,724.40x = 43,063.35 × 12,917.85
  4. Step 4: Simplify right side
    28,724.40x = 556,285,895.80
  5. Step 5: Solve for x
    x = 556,285,895.80/28,724.40
  6. Step 6: Final answer
    x = 19,366.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.