Home / 38,426.70-57,646.38-12,125.30

Finding the Fourth Proportional to 38,426.70, 57,646.38 and 12,125.30

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Solution

The fourth proportional to 38,426.70, 57,646.38 and 12,125.30 is: 18,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,426.70 : 57,646.38 = 12,125.30 : x
  2. Step 2: Convert to fraction form
    38,426.70/57,646.38 = 12,125.30/x
  3. Step 3: Cross multiply
    38,426.70x = 57,646.38 × 12,125.30
  4. Step 4: Simplify right side
    38,426.70x = 698,979,408.65
  5. Step 5: Solve for x
    x = 698,979,408.65/38,426.70
  6. Step 6: Final answer
    x = 18,189.94

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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.