Home / 25,554.89-38,276.90-12,379.63

Finding the Fourth Proportional to 25,554.89, 38,276.90 and 12,379.63

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Solution

The fourth proportional to 25,554.89, 38,276.90 and 12,379.63 is: 18,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,554.89 : 38,276.90 = 12,379.63 : x
  2. Step 2: Convert to fraction form
    25,554.89/38,276.90 = 12,379.63/x
  3. Step 3: Cross multiply
    25,554.89x = 38,276.90 × 12,379.63
  4. Step 4: Simplify right side
    25,554.89x = 473,853,797.65
  5. Step 5: Solve for x
    x = 473,853,797.65/25,554.89
  6. Step 6: Final answer
    x = 18,542.59

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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.