Home / 28,936.80-43,356.60-14,113.80

Finding the Fourth Proportional to 28,936.80, 43,356.60 and 14,113.80

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Solution

The fourth proportional to 28,936.80, 43,356.60 and 14,113.80 is: 21,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.80 : 43,356.60 = 14,113.80 : x
  2. Step 2: Convert to fraction form
    28,936.80/43,356.60 = 14,113.80/x
  3. Step 3: Cross multiply
    28,936.80x = 43,356.60 × 14,113.80
  4. Step 4: Simplify right side
    28,936.80x = 611,926,381.08
  5. Step 5: Solve for x
    x = 611,926,381.08/28,936.80
  6. Step 6: Final answer
    x = 21,147.00

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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.