Home / 28,221.58-42,323.73-19,512.46

Finding the Fourth Proportional to 28,221.58, 42,323.73 and 19,512.46

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Solution

The fourth proportional to 28,221.58, 42,323.73 and 19,512.46 is: 29,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.58 : 42,323.73 = 19,512.46 : x
  2. Step 2: Convert to fraction form
    28,221.58/42,323.73 = 19,512.46/x
  3. Step 3: Cross multiply
    28,221.58x = 42,323.73 × 19,512.46
  4. Step 4: Simplify right side
    28,221.58x = 825,840,088.68
  5. Step 5: Solve for x
    x = 825,840,088.68/28,221.58
  6. Step 6: Final answer
    x = 29,262.72

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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.