Home / 28,936.22-39,931.32-16,189.58

Finding the Fourth Proportional to 28,936.22, 39,931.32 and 16,189.58

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Solution

The fourth proportional to 28,936.22, 39,931.32 and 16,189.58 is: 22,341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.22 : 39,931.32 = 16,189.58 : x
  2. Step 2: Convert to fraction form
    28,936.22/39,931.32 = 16,189.58/x
  3. Step 3: Cross multiply
    28,936.22x = 39,931.32 × 16,189.58
  4. Step 4: Simplify right side
    28,936.22x = 646,471,299.65
  5. Step 5: Solve for x
    x = 646,471,299.65/28,936.22
  6. Step 6: Final answer
    x = 22,341.25

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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.