Home / 13,535.36-20,150.32-13,350.68

Finding the Fourth Proportional to 13,535.36, 20,150.32 and 13,350.68

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Solution

The fourth proportional to 13,535.36, 20,150.32 and 13,350.68 is: 19,875.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.36 : 20,150.32 = 13,350.68 : x
  2. Step 2: Convert to fraction form
    13,535.36/20,150.32 = 13,350.68/x
  3. Step 3: Cross multiply
    13,535.36x = 20,150.32 × 13,350.68
  4. Step 4: Simplify right side
    13,535.36x = 269,020,474.22
  5. Step 5: Solve for x
    x = 269,020,474.22/13,535.36
  6. Step 6: Final answer
    x = 19,875.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.