Home / 28,986.60-43,489.24-13,197.28

Finding the Fourth Proportional to 28,986.60, 43,489.24 and 13,197.28

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Solution

The fourth proportional to 28,986.60, 43,489.24 and 13,197.28 is: 19,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.60 : 43,489.24 = 13,197.28 : x
  2. Step 2: Convert to fraction form
    28,986.60/43,489.24 = 13,197.28/x
  3. Step 3: Cross multiply
    28,986.60x = 43,489.24 × 13,197.28
  4. Step 4: Simplify right side
    28,986.60x = 573,939,677.27
  5. Step 5: Solve for x
    x = 573,939,677.27/28,986.60
  6. Step 6: Final answer
    x = 19,800.17

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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.