Home / 20,833.79-28,750.62-11,402.35

Finding the Fourth Proportional to 20,833.79, 28,750.62 and 11,402.35

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Solution

The fourth proportional to 20,833.79, 28,750.62 and 11,402.35 is: 15,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.79 : 28,750.62 = 11,402.35 : x
  2. Step 2: Convert to fraction form
    20,833.79/28,750.62 = 11,402.35/x
  3. Step 3: Cross multiply
    20,833.79x = 28,750.62 × 11,402.35
  4. Step 4: Simplify right side
    20,833.79x = 327,824,560.08
  5. Step 5: Solve for x
    x = 327,824,560.08/20,833.79
  6. Step 6: Final answer
    x = 15,735.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.