Home / 19,005.46-28,512.83-13,394.07

Finding the Fourth Proportional to 19,005.46, 28,512.83 and 13,394.07

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Solution

The fourth proportional to 19,005.46, 28,512.83 and 13,394.07 is: 20,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.46 : 28,512.83 = 13,394.07 : x
  2. Step 2: Convert to fraction form
    19,005.46/28,512.83 = 13,394.07/x
  3. Step 3: Cross multiply
    19,005.46x = 28,512.83 × 13,394.07
  4. Step 4: Simplify right side
    19,005.46x = 381,902,845.23
  5. Step 5: Solve for x
    x = 381,902,845.23/19,005.46
  6. Step 6: Final answer
    x = 20,094.38

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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.