Home / 28,896.09-39,872.59-16,147.67

Finding the Fourth Proportional to 28,896.09, 39,872.59 and 16,147.67

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Solution

The fourth proportional to 28,896.09, 39,872.59 and 16,147.67 is: 22,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.09 : 39,872.59 = 16,147.67 : x
  2. Step 2: Convert to fraction form
    28,896.09/39,872.59 = 16,147.67/x
  3. Step 3: Cross multiply
    28,896.09x = 39,872.59 × 16,147.67
  4. Step 4: Simplify right side
    28,896.09x = 643,849,185.63
  5. Step 5: Solve for x
    x = 643,849,185.63/28,896.09
  6. Step 6: Final answer
    x = 22,281.54

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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.