Home / 28,529.56-39,362.89-16,429.54

Finding the Fourth Proportional to 28,529.56, 39,362.89 and 16,429.54

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Solution

The fourth proportional to 28,529.56, 39,362.89 and 16,429.54 is: 22,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.56 : 39,362.89 = 16,429.54 : x
  2. Step 2: Convert to fraction form
    28,529.56/39,362.89 = 16,429.54/x
  3. Step 3: Cross multiply
    28,529.56x = 39,362.89 × 16,429.54
  4. Step 4: Simplify right side
    28,529.56x = 646,713,896.81
  5. Step 5: Solve for x
    x = 646,713,896.81/28,529.56
  6. Step 6: Final answer
    x = 22,668.21

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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.