Home / 28,005.48-42,009.30-7,229.52

Finding the Fourth Proportional to 28,005.48, 42,009.30 and 7,229.52

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Solution

The fourth proportional to 28,005.48, 42,009.30 and 7,229.52 is: 10,844.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.48 : 42,009.30 = 7,229.52 : x
  2. Step 2: Convert to fraction form
    28,005.48/42,009.30 = 7,229.52/x
  3. Step 3: Cross multiply
    28,005.48x = 42,009.30 × 7,229.52
  4. Step 4: Simplify right side
    28,005.48x = 303,707,074.54
  5. Step 5: Solve for x
    x = 303,707,074.54/28,005.48
  6. Step 6: Final answer
    x = 10,844.56

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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.