Home / 28,119.76-42,179.60-9,395.53

Finding the Fourth Proportional to 28,119.76, 42,179.60 and 9,395.53

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Solution

The fourth proportional to 28,119.76, 42,179.60 and 9,395.53 is: 14,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.76 : 42,179.60 = 9,395.53 : x
  2. Step 2: Convert to fraction form
    28,119.76/42,179.60 = 9,395.53/x
  3. Step 3: Cross multiply
    28,119.76x = 42,179.60 × 9,395.53
  4. Step 4: Simplify right side
    28,119.76x = 396,299,615.23
  5. Step 5: Solve for x
    x = 396,299,615.23/28,119.76
  6. Step 6: Final answer
    x = 14,093.28

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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.