Home / 28,756.32-39,683.64-16,181.08

Finding the Fourth Proportional to 28,756.32, 39,683.64 and 16,181.08

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Solution

The fourth proportional to 28,756.32, 39,683.64 and 16,181.08 is: 22,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.32 : 39,683.64 = 16,181.08 : x
  2. Step 2: Convert to fraction form
    28,756.32/39,683.64 = 16,181.08/x
  3. Step 3: Cross multiply
    28,756.32x = 39,683.64 × 16,181.08
  4. Step 4: Simplify right side
    28,756.32x = 642,124,153.53
  5. Step 5: Solve for x
    x = 642,124,153.53/28,756.32
  6. Step 6: Final answer
    x = 22,329.84

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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.