Home / 28,756.28-39,683.22-16,181.06

Finding the Fourth Proportional to 28,756.28, 39,683.22 and 16,181.06

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Solution

The fourth proportional to 28,756.28, 39,683.22 and 16,181.06 is: 22,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.28 : 39,683.22 = 16,181.06 : x
  2. Step 2: Convert to fraction form
    28,756.28/39,683.22 = 16,181.06/x
  3. Step 3: Cross multiply
    28,756.28x = 39,683.22 × 16,181.06
  4. Step 4: Simplify right side
    28,756.28x = 642,116,563.81
  5. Step 5: Solve for x
    x = 642,116,563.81/28,756.28
  6. Step 6: Final answer
    x = 22,329.61

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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.