Home / 30,156.96-45,235.56-12,614.49

Finding the Fourth Proportional to 30,156.96, 45,235.56 and 12,614.49

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Solution

The fourth proportional to 30,156.96, 45,235.56 and 12,614.49 is: 18,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.96 : 45,235.56 = 12,614.49 : x
  2. Step 2: Convert to fraction form
    30,156.96/45,235.56 = 12,614.49/x
  3. Step 3: Cross multiply
    30,156.96x = 45,235.56 × 12,614.49
  4. Step 4: Simplify right side
    30,156.96x = 570,623,519.26
  5. Step 5: Solve for x
    x = 570,623,519.26/30,156.96
  6. Step 6: Final answer
    x = 18,921.79

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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.