Home / 19,211.40-28,772.78-18,546.48

Finding the Fourth Proportional to 19,211.40, 28,772.78 and 18,546.48

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Solution

The fourth proportional to 19,211.40, 28,772.78 and 18,546.48 is: 27,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.40 : 28,772.78 = 18,546.48 : x
  2. Step 2: Convert to fraction form
    19,211.40/28,772.78 = 18,546.48/x
  3. Step 3: Cross multiply
    19,211.40x = 28,772.78 × 18,546.48
  4. Step 4: Simplify right side
    19,211.40x = 533,633,696.08
  5. Step 5: Solve for x
    x = 533,633,696.08/19,211.40
  6. Step 6: Final answer
    x = 27,776.93

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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.