Home / 28,962.80-43,395.60-14,139.80

Finding the Fourth Proportional to 28,962.80, 43,395.60 and 14,139.80

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Solution

The fourth proportional to 28,962.80, 43,395.60 and 14,139.80 is: 21,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.80 : 43,395.60 = 14,139.80 : x
  2. Step 2: Convert to fraction form
    28,962.80/43,395.60 = 14,139.80/x
  3. Step 3: Cross multiply
    28,962.80x = 43,395.60 × 14,139.80
  4. Step 4: Simplify right side
    28,962.80x = 613,605,104.88
  5. Step 5: Solve for x
    x = 613,605,104.88/28,962.80
  6. Step 6: Final answer
    x = 21,185.97

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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.