Home / 30,623.39-42,263.66-17,879.70

Finding the Fourth Proportional to 30,623.39, 42,263.66 and 17,879.70

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Solution

The fourth proportional to 30,623.39, 42,263.66 and 17,879.70 is: 24,675.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,623.39 : 42,263.66 = 17,879.70 : x
  2. Step 2: Convert to fraction form
    30,623.39/42,263.66 = 17,879.70/x
  3. Step 3: Cross multiply
    30,623.39x = 42,263.66 × 17,879.70
  4. Step 4: Simplify right side
    30,623.39x = 755,661,539.35
  5. Step 5: Solve for x
    x = 755,661,539.35/30,623.39
  6. Step 6: Final answer
    x = 24,675.96

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1.5x scale

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.