Home / 47,189.44-70,784.84-12,129.13

Finding the Fourth Proportional to 47,189.44, 70,784.84 and 12,129.13

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Solution

The fourth proportional to 47,189.44, 70,784.84 and 12,129.13 is: 18,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,189.44 : 70,784.84 = 12,129.13 : x
  2. Step 2: Convert to fraction form
    47,189.44/70,784.84 = 12,129.13/x
  3. Step 3: Cross multiply
    47,189.44x = 70,784.84 × 12,129.13
  4. Step 4: Simplify right side
    47,189.44x = 858,558,526.39
  5. Step 5: Solve for x
    x = 858,558,526.39/47,189.44
  6. Step 6: Final answer
    x = 18,193.87

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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.