Home / 30,157.68-41,619.24-19,556.40

Finding the Fourth Proportional to 30,157.68, 41,619.24 and 19,556.40

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Solution

The fourth proportional to 30,157.68, 41,619.24 and 19,556.40 is: 26,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.68 : 41,619.24 = 19,556.40 : x
  2. Step 2: Convert to fraction form
    30,157.68/41,619.24 = 19,556.40/x
  3. Step 3: Cross multiply
    30,157.68x = 41,619.24 × 19,556.40
  4. Step 4: Simplify right side
    30,157.68x = 813,922,505.14
  5. Step 5: Solve for x
    x = 813,922,505.14/30,157.68
  6. Step 6: Final answer
    x = 26,988.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.