Home / 30,976.58-42,747.78-17,550.32

Finding the Fourth Proportional to 30,976.58, 42,747.78 and 17,550.32

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Solution

The fourth proportional to 30,976.58, 42,747.78 and 17,550.32 is: 24,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976.58 : 42,747.78 = 17,550.32 : x
  2. Step 2: Convert to fraction form
    30,976.58/42,747.78 = 17,550.32/x
  3. Step 3: Cross multiply
    30,976.58x = 42,747.78 × 17,550.32
  4. Step 4: Simplify right side
    30,976.58x = 750,237,004.55
  5. Step 5: Solve for x
    x = 750,237,004.55/30,976.58
  6. Step 6: Final answer
    x = 24,219.50

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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.