Home / 28,859.85-43,256.97-12,209.49

Finding the Fourth Proportional to 28,859.85, 43,256.97 and 12,209.49

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Solution

The fourth proportional to 28,859.85, 43,256.97 and 12,209.49 is: 18,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.85 : 43,256.97 = 12,209.49 : x
  2. Step 2: Convert to fraction form
    28,859.85/43,256.97 = 12,209.49/x
  3. Step 3: Cross multiply
    28,859.85x = 43,256.97 × 12,209.49
  4. Step 4: Simplify right side
    28,859.85x = 528,145,542.65
  5. Step 5: Solve for x
    x = 528,145,542.65/28,859.85
  6. Step 6: Final answer
    x = 18,300.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.