Home / 28,664.13-42,920.06-19,289.73

Finding the Fourth Proportional to 28,664.13, 42,920.06 and 19,289.73

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Solution

The fourth proportional to 28,664.13, 42,920.06 and 19,289.73 is: 28,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.13 : 42,920.06 = 19,289.73 : x
  2. Step 2: Convert to fraction form
    28,664.13/42,920.06 = 19,289.73/x
  3. Step 3: Cross multiply
    28,664.13x = 42,920.06 × 19,289.73
  4. Step 4: Simplify right side
    28,664.13x = 827,916,272.54
  5. Step 5: Solve for x
    x = 827,916,272.54/28,664.13
  6. Step 6: Final answer
    x = 28,883.36

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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.