Home / 19,109.70-28,664.55-13,277.70

Finding the Fourth Proportional to 19,109.70, 28,664.55 and 13,277.70

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Solution

The fourth proportional to 19,109.70, 28,664.55 and 13,277.70 is: 19,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.70 : 28,664.55 = 13,277.70 : x
  2. Step 2: Convert to fraction form
    19,109.70/28,664.55 = 13,277.70/x
  3. Step 3: Cross multiply
    19,109.70x = 28,664.55 × 13,277.70
  4. Step 4: Simplify right side
    19,109.70x = 380,599,295.54
  5. Step 5: Solve for x
    x = 380,599,295.54/19,109.70
  6. Step 6: Final answer
    x = 19,916.55

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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.