Home / 20,627.74-28,448.70-13,904.54

Finding the Fourth Proportional to 20,627.74, 28,448.70 and 13,904.54

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Solution

The fourth proportional to 20,627.74, 28,448.70 and 13,904.54 is: 19,176.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.74 : 28,448.70 = 13,904.54 : x
  2. Step 2: Convert to fraction form
    20,627.74/28,448.70 = 13,904.54/x
  3. Step 3: Cross multiply
    20,627.74x = 28,448.70 × 13,904.54
  4. Step 4: Simplify right side
    20,627.74x = 395,566,087.10
  5. Step 5: Solve for x
    x = 395,566,087.10/20,627.74
  6. Step 6: Final answer
    x = 19,176.41

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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.