Home / 28,209.36-42,317.68-9,481.32

Finding the Fourth Proportional to 28,209.36, 42,317.68 and 9,481.32

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Solution

The fourth proportional to 28,209.36, 42,317.68 and 9,481.32 is: 14,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.36 : 42,317.68 = 9,481.32 : x
  2. Step 2: Convert to fraction form
    28,209.36/42,317.68 = 9,481.32/x
  3. Step 3: Cross multiply
    28,209.36x = 42,317.68 × 9,481.32
  4. Step 4: Simplify right side
    28,209.36x = 401,227,465.74
  5. Step 5: Solve for x
    x = 401,227,465.74/28,209.36
  6. Step 6: Final answer
    x = 14,223.20

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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.