Home / 28,223.10-42,330.32-7,448.22

Finding the Fourth Proportional to 28,223.10, 42,330.32 and 7,448.22

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Solution

The fourth proportional to 28,223.10, 42,330.32 and 7,448.22 is: 11,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.10 : 42,330.32 = 7,448.22 : x
  2. Step 2: Convert to fraction form
    28,223.10/42,330.32 = 7,448.22/x
  3. Step 3: Cross multiply
    28,223.10x = 42,330.32 × 7,448.22
  4. Step 4: Simplify right side
    28,223.10x = 315,285,536.03
  5. Step 5: Solve for x
    x = 315,285,536.03/28,223.10
  6. Step 6: Final answer
    x = 11,171.19

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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.