Home / 20,627.40-28,465.98-11,196.03

Finding the Fourth Proportional to 20,627.40, 28,465.98 and 11,196.03

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Solution

The fourth proportional to 20,627.40, 28,465.98 and 11,196.03 is: 15,450.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.40 : 28,465.98 = 11,196.03 : x
  2. Step 2: Convert to fraction form
    20,627.40/28,465.98 = 11,196.03/x
  3. Step 3: Cross multiply
    20,627.40x = 28,465.98 × 11,196.03
  4. Step 4: Simplify right side
    20,627.40x = 318,705,966.06
  5. Step 5: Solve for x
    x = 318,705,966.06/20,627.40
  6. Step 6: Final answer
    x = 15,450.61

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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.