Home / 28,128.44-42,180.34-13,341.58

Finding the Fourth Proportional to 28,128.44, 42,180.34 and 13,341.58

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Solution

The fourth proportional to 28,128.44, 42,180.34 and 13,341.58 is: 20,006.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128.44 : 42,180.34 = 13,341.58 : x
  2. Step 2: Convert to fraction form
    28,128.44/42,180.34 = 13,341.58/x
  3. Step 3: Cross multiply
    28,128.44x = 42,180.34 × 13,341.58
  4. Step 4: Simplify right side
    28,128.44x = 562,752,380.54
  5. Step 5: Solve for x
    x = 562,752,380.54/28,128.44
  6. Step 6: Final answer
    x = 20,006.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.