Home / 30,905.37-46,360.01-11,939.05

Finding the Fourth Proportional to 30,905.37, 46,360.01 and 11,939.05

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Solution

The fourth proportional to 30,905.37, 46,360.01 and 11,939.05 is: 17,909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.37 : 46,360.01 = 11,939.05 : x
  2. Step 2: Convert to fraction form
    30,905.37/46,360.01 = 11,939.05/x
  3. Step 3: Cross multiply
    30,905.37x = 46,360.01 × 11,939.05
  4. Step 4: Simplify right side
    30,905.37x = 553,494,477.39
  5. Step 5: Solve for x
    x = 553,494,477.39/30,905.37
  6. Step 6: Final answer
    x = 17,909.33

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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.