Home / 30,833.74-42,550.39-16,686.58

Finding the Fourth Proportional to 30,833.74, 42,550.39 and 16,686.58

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Solution

The fourth proportional to 30,833.74, 42,550.39 and 16,686.58 is: 23,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,833.74 : 42,550.39 = 16,686.58 : x
  2. Step 2: Convert to fraction form
    30,833.74/42,550.39 = 16,686.58/x
  3. Step 3: Cross multiply
    30,833.74x = 42,550.39 × 16,686.58
  4. Step 4: Simplify right side
    30,833.74x = 710,020,486.77
  5. Step 5: Solve for x
    x = 710,020,486.77/30,833.74
  6. Step 6: Final answer
    x = 23,027.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.