Home / 28,545.32-39,393.06-15,969.80

Finding the Fourth Proportional to 28,545.32, 39,393.06 and 15,969.80

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Solution

The fourth proportional to 28,545.32, 39,393.06 and 15,969.80 is: 22,038.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.32 : 39,393.06 = 15,969.80 : x
  2. Step 2: Convert to fraction form
    28,545.32/39,393.06 = 15,969.80/x
  3. Step 3: Cross multiply
    28,545.32x = 39,393.06 × 15,969.80
  4. Step 4: Simplify right side
    28,545.32x = 629,099,289.59
  5. Step 5: Solve for x
    x = 629,099,289.59/28,545.32
  6. Step 6: Final answer
    x = 22,038.61

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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.