Home / 38,187.25-57,322.78-30,340.21

Finding the Fourth Proportional to 38,187.25, 57,322.78 and 30,340.21

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Solution

The fourth proportional to 38,187.25, 57,322.78 and 30,340.21 is: 45,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187.25 : 57,322.78 = 30,340.21 : x
  2. Step 2: Convert to fraction form
    38,187.25/57,322.78 = 30,340.21/x
  3. Step 3: Cross multiply
    38,187.25x = 57,322.78 × 30,340.21
  4. Step 4: Simplify right side
    38,187.25x = 1,739,184,896.37
  5. Step 5: Solve for x
    x = 1,739,184,896.37/38,187.25
  6. Step 6: Final answer
    x = 45,543.60

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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.