Home / 20,833.07-28,748.93-11,401.43

Finding the Fourth Proportional to 20,833.07, 28,748.93 and 11,401.43

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Solution

The fourth proportional to 20,833.07, 28,748.93 and 11,401.43 is: 15,733.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.07 : 28,748.93 = 11,401.43 : x
  2. Step 2: Convert to fraction form
    20,833.07/28,748.93 = 11,401.43/x
  3. Step 3: Cross multiply
    20,833.07x = 28,748.93 × 11,401.43
  4. Step 4: Simplify right side
    20,833.07x = 327,778,712.22
  5. Step 5: Solve for x
    x = 327,778,712.22/20,833.07
  6. Step 6: Final answer
    x = 15,733.58

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1.5x scale

Why These Related Problems?

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