Home / 30,126.74-45,131.30-14,309.27

Finding the Fourth Proportional to 30,126.74, 45,131.30 and 14,309.27

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Solution

The fourth proportional to 30,126.74, 45,131.30 and 14,309.27 is: 21,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.74 : 45,131.30 = 14,309.27 : x
  2. Step 2: Convert to fraction form
    30,126.74/45,131.30 = 14,309.27/x
  3. Step 3: Cross multiply
    30,126.74x = 45,131.30 × 14,309.27
  4. Step 4: Simplify right side
    30,126.74x = 645,795,659.95
  5. Step 5: Solve for x
    x = 645,795,659.95/30,126.74
  6. Step 6: Final answer
    x = 21,435.96

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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.