Home / 28,991.22-43,503.28-12,349.51

Finding the Fourth Proportional to 28,991.22, 43,503.28 and 12,349.51

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Solution

The fourth proportional to 28,991.22, 43,503.28 and 12,349.51 is: 18,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.22 : 43,503.28 = 12,349.51 : x
  2. Step 2: Convert to fraction form
    28,991.22/43,503.28 = 12,349.51/x
  3. Step 3: Cross multiply
    28,991.22x = 43,503.28 × 12,349.51
  4. Step 4: Simplify right side
    28,991.22x = 537,244,296.47
  5. Step 5: Solve for x
    x = 537,244,296.47/28,991.22
  6. Step 6: Final answer
    x = 18,531.28

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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.