Home / 36,123.40-54,171.06-12,426.45

Finding the Fourth Proportional to 36,123.40, 54,171.06 and 12,426.45

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Solution

The fourth proportional to 36,123.40, 54,171.06 and 12,426.45 is: 18,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,123.40 : 54,171.06 = 12,426.45 : x
  2. Step 2: Convert to fraction form
    36,123.40/54,171.06 = 12,426.45/x
  3. Step 3: Cross multiply
    36,123.40x = 54,171.06 × 12,426.45
  4. Step 4: Simplify right side
    36,123.40x = 673,153,788.70
  5. Step 5: Solve for x
    x = 673,153,788.70/36,123.40
  6. Step 6: Final answer
    x = 18,634.84

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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.