Home / 28,535.63-39,379.30-15,960.38

Finding the Fourth Proportional to 28,535.63, 39,379.30 and 15,960.38

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Solution

The fourth proportional to 28,535.63, 39,379.30 and 15,960.38 is: 22,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.63 : 39,379.30 = 15,960.38 : x
  2. Step 2: Convert to fraction form
    28,535.63/39,379.30 = 15,960.38/x
  3. Step 3: Cross multiply
    28,535.63x = 39,379.30 × 15,960.38
  4. Step 4: Simplify right side
    28,535.63x = 628,508,355.34
  5. Step 5: Solve for x
    x = 628,508,355.34/28,535.63
  6. Step 6: Final answer
    x = 22,025.39

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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.