Home / 20,503.67-28,293.21-11,552.63

Finding the Fourth Proportional to 20,503.67, 28,293.21 and 11,552.63

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Solution

The fourth proportional to 20,503.67, 28,293.21 and 11,552.63 is: 15,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.67 : 28,293.21 = 11,552.63 : x
  2. Step 2: Convert to fraction form
    20,503.67/28,293.21 = 11,552.63/x
  3. Step 3: Cross multiply
    20,503.67x = 28,293.21 × 11,552.63
  4. Step 4: Simplify right side
    20,503.67x = 326,860,845.18
  5. Step 5: Solve for x
    x = 326,860,845.18/20,503.67
  6. Step 6: Final answer
    x = 15,941.58

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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.