Home / 30,619.63-42,254.73-17,190.55

Finding the Fourth Proportional to 30,619.63, 42,254.73 and 17,190.55

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Solution

The fourth proportional to 30,619.63, 42,254.73 and 17,190.55 is: 23,722.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.63 : 42,254.73 = 17,190.55 : x
  2. Step 2: Convert to fraction form
    30,619.63/42,254.73 = 17,190.55/x
  3. Step 3: Cross multiply
    30,619.63x = 42,254.73 × 17,190.55
  4. Step 4: Simplify right side
    30,619.63x = 726,382,048.80
  5. Step 5: Solve for x
    x = 726,382,048.80/30,619.63
  6. Step 6: Final answer
    x = 23,722.76

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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.