Home / 28,175.37-42,259.70-7,400.49

Finding the Fourth Proportional to 28,175.37, 42,259.70 and 7,400.49

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Solution

The fourth proportional to 28,175.37, 42,259.70 and 7,400.49 is: 11,099.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.37 : 42,259.70 = 7,400.49 : x
  2. Step 2: Convert to fraction form
    28,175.37/42,259.70 = 7,400.49/x
  3. Step 3: Cross multiply
    28,175.37x = 42,259.70 × 7,400.49
  4. Step 4: Simplify right side
    28,175.37x = 312,742,450.25
  5. Step 5: Solve for x
    x = 312,742,450.25/28,175.37
  6. Step 6: Final answer
    x = 11,099.85

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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.