Home / 28,660.68-39,554.24-15,916.34

Finding the Fourth Proportional to 28,660.68, 39,554.24 and 15,916.34

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Solution

The fourth proportional to 28,660.68, 39,554.24 and 15,916.34 is: 21,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.68 : 39,554.24 = 15,916.34 : x
  2. Step 2: Convert to fraction form
    28,660.68/39,554.24 = 15,916.34/x
  3. Step 3: Cross multiply
    28,660.68x = 39,554.24 × 15,916.34
  4. Step 4: Simplify right side
    28,660.68x = 629,558,751.59
  5. Step 5: Solve for x
    x = 629,558,751.59/28,660.68
  6. Step 6: Final answer
    x = 21,965.94

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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.