Home / 30,739.20-46,090.11-12,015.74

Finding the Fourth Proportional to 30,739.20, 46,090.11 and 12,015.74

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Solution

The fourth proportional to 30,739.20, 46,090.11 and 12,015.74 is: 18,016.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,739.20 : 46,090.11 = 12,015.74 : x
  2. Step 2: Convert to fraction form
    30,739.20/46,090.11 = 12,015.74/x
  3. Step 3: Cross multiply
    30,739.20x = 46,090.11 × 12,015.74
  4. Step 4: Simplify right side
    30,739.20x = 553,806,938.62
  5. Step 5: Solve for x
    x = 553,806,938.62/30,739.20
  6. Step 6: Final answer
    x = 18,016.31

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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.