Home / 28,686-39,586.68-16,110.76

Finding the Fourth Proportional to 28,686, 39,586.68 and 16,110.76

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Solution

The fourth proportional to 28,686, 39,586.68 and 16,110.76 is: 22,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686 : 39,586.68 = 16,110.76 : x
  2. Step 2: Convert to fraction form
    28,686/39,586.68 = 16,110.76/x
  3. Step 3: Cross multiply
    28,686x = 39,586.68 × 16,110.76
  4. Step 4: Simplify right side
    28,686x = 637,771,500.68
  5. Step 5: Solve for x
    x = 637,771,500.68/28,686
  6. Step 6: Final answer
    x = 22,232.85

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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.