Home / 30,195.14-45,278.15-12,660.26

Finding the Fourth Proportional to 30,195.14, 45,278.15 and 12,660.26

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Solution

The fourth proportional to 30,195.14, 45,278.15 and 12,660.26 is: 18,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,195.14 : 45,278.15 = 12,660.26 : x
  2. Step 2: Convert to fraction form
    30,195.14/45,278.15 = 12,660.26/x
  3. Step 3: Cross multiply
    30,195.14x = 45,278.15 × 12,660.26
  4. Step 4: Simplify right side
    30,195.14x = 573,232,861.63
  5. Step 5: Solve for x
    x = 573,232,861.63/30,195.14
  6. Step 6: Final answer
    x = 18,984.28

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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.