Home / 20,627.47-28,465.98-11,196.01

Finding the Fourth Proportional to 20,627.47, 28,465.98 and 11,196.01

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Solution

The fourth proportional to 20,627.47, 28,465.98 and 11,196.01 is: 15,450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.47 : 28,465.98 = 11,196.01 : x
  2. Step 2: Convert to fraction form
    20,627.47/28,465.98 = 11,196.01/x
  3. Step 3: Cross multiply
    20,627.47x = 28,465.98 × 11,196.01
  4. Step 4: Simplify right side
    20,627.47x = 318,705,396.74
  5. Step 5: Solve for x
    x = 318,705,396.74/20,627.47
  6. Step 6: Final answer
    x = 15,450.53

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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.