Home / 28,749.08-43,094.40-21,809

Finding the Fourth Proportional to 28,749.08, 43,094.40 and 21,809

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Solution

The fourth proportional to 28,749.08, 43,094.40 and 21,809 is: 32,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.08 : 43,094.40 = 21,809 : x
  2. Step 2: Convert to fraction form
    28,749.08/43,094.40 = 21,809/x
  3. Step 3: Cross multiply
    28,749.08x = 43,094.40 × 21,809
  4. Step 4: Simplify right side
    28,749.08x = 939,845,769.60
  5. Step 5: Solve for x
    x = 939,845,769.60/28,749.08
  6. Step 6: Final answer
    x = 32,691.33

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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.