Home / 28,749.29-43,120.28-21,364.52

Finding the Fourth Proportional to 28,749.29, 43,120.28 and 21,364.52

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Solution

The fourth proportional to 28,749.29, 43,120.28 and 21,364.52 is: 32,044.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.29 : 43,120.28 = 21,364.52 : x
  2. Step 2: Convert to fraction form
    28,749.29/43,120.28 = 21,364.52/x
  3. Step 3: Cross multiply
    28,749.29x = 43,120.28 × 21,364.52
  4. Step 4: Simplify right side
    28,749.29x = 921,243,922.28
  5. Step 5: Solve for x
    x = 921,243,922.28/28,749.29
  6. Step 6: Final answer
    x = 32,044.06

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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.