Home / 30,743.58-42,426.63-17,131.64

Finding the Fourth Proportional to 30,743.58, 42,426.63 and 17,131.64

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Solution

The fourth proportional to 30,743.58, 42,426.63 and 17,131.64 is: 23,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,743.58 : 42,426.63 = 17,131.64 : x
  2. Step 2: Convert to fraction form
    30,743.58/42,426.63 = 17,131.64/x
  3. Step 3: Cross multiply
    30,743.58x = 42,426.63 × 17,131.64
  4. Step 4: Simplify right side
    30,743.58x = 726,837,539.44
  5. Step 5: Solve for x
    x = 726,837,539.44/30,743.58
  6. Step 6: Final answer
    x = 23,641.93

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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.