Home / 30,111.28-41,555.91-16,683.78

Finding the Fourth Proportional to 30,111.28, 41,555.91 and 16,683.78

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Solution

The fourth proportional to 30,111.28, 41,555.91 and 16,683.78 is: 23,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.28 : 41,555.91 = 16,683.78 : x
  2. Step 2: Convert to fraction form
    30,111.28/41,555.91 = 16,683.78/x
  3. Step 3: Cross multiply
    30,111.28x = 41,555.91 × 16,683.78
  4. Step 4: Simplify right side
    30,111.28x = 693,309,660.14
  5. Step 5: Solve for x
    x = 693,309,660.14/30,111.28
  6. Step 6: Final answer
    x = 23,024.91

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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.