Home / 30,275.08-41,762.34-18,172.34

Finding the Fourth Proportional to 30,275.08, 41,762.34 and 18,172.34

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Solution

The fourth proportional to 30,275.08, 41,762.34 and 18,172.34 is: 25,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.08 : 41,762.34 = 18,172.34 : x
  2. Step 2: Convert to fraction form
    30,275.08/41,762.34 = 18,172.34/x
  3. Step 3: Cross multiply
    30,275.08x = 41,762.34 × 18,172.34
  4. Step 4: Simplify right side
    30,275.08x = 758,919,441.68
  5. Step 5: Solve for x
    x = 758,919,441.68/30,275.08
  6. Step 6: Final answer
    x = 25,067.46

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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.