Home / 30,380.21-45,573.36-12,607.19

Finding the Fourth Proportional to 30,380.21, 45,573.36 and 12,607.19

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Solution

The fourth proportional to 30,380.21, 45,573.36 and 12,607.19 is: 18,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,380.21 : 45,573.36 = 12,607.19 : x
  2. Step 2: Convert to fraction form
    30,380.21/45,573.36 = 12,607.19/x
  3. Step 3: Cross multiply
    30,380.21x = 45,573.36 × 12,607.19
  4. Step 4: Simplify right side
    30,380.21x = 574,552,196.02
  5. Step 5: Solve for x
    x = 574,552,196.02/30,380.21
  6. Step 6: Final answer
    x = 18,912.05

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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.