Home / 25,370.12-37,999.70-12,868.60

Finding the Fourth Proportional to 25,370.12, 37,999.70 and 12,868.60

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Solution

The fourth proportional to 25,370.12, 37,999.70 and 12,868.60 is: 19,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,370.12 : 37,999.70 = 12,868.60 : x
  2. Step 2: Convert to fraction form
    25,370.12/37,999.70 = 12,868.60/x
  3. Step 3: Cross multiply
    25,370.12x = 37,999.70 × 12,868.60
  4. Step 4: Simplify right side
    25,370.12x = 489,002,939.42
  5. Step 5: Solve for x
    x = 489,002,939.42/25,370.12
  6. Step 6: Final answer
    x = 19,274.76

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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.