Home / 30,237.94-45,362.38-12,458.72

Finding the Fourth Proportional to 30,237.94, 45,362.38 and 12,458.72

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Solution

The fourth proportional to 30,237.94, 45,362.38 and 12,458.72 is: 18,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.94 : 45,362.38 = 12,458.72 : x
  2. Step 2: Convert to fraction form
    30,237.94/45,362.38 = 12,458.72/x
  3. Step 3: Cross multiply
    30,237.94x = 45,362.38 × 12,458.72
  4. Step 4: Simplify right side
    30,237.94x = 565,157,190.95
  5. Step 5: Solve for x
    x = 565,157,190.95/30,237.94
  6. Step 6: Final answer
    x = 18,690.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.