Home / 20,314.85-28,035.95-11,365.23

Finding the Fourth Proportional to 20,314.85, 28,035.95 and 11,365.23

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Solution

The fourth proportional to 20,314.85, 28,035.95 and 11,365.23 is: 15,684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.85 : 28,035.95 = 11,365.23 : x
  2. Step 2: Convert to fraction form
    20,314.85/28,035.95 = 11,365.23/x
  3. Step 3: Cross multiply
    20,314.85x = 28,035.95 × 11,365.23
  4. Step 4: Simplify right side
    20,314.85x = 318,634,974.55
  5. Step 5: Solve for x
    x = 318,634,974.55/20,314.85
  6. Step 6: Final answer
    x = 15,684.83

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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.