Home / 25,290.23-34,889.33-15,212.86

Finding the Fourth Proportional to 25,290.23, 34,889.33 and 15,212.86

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Solution

The fourth proportional to 25,290.23, 34,889.33 and 15,212.86 is: 20,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,290.23 : 34,889.33 = 15,212.86 : x
  2. Step 2: Convert to fraction form
    25,290.23/34,889.33 = 15,212.86/x
  3. Step 3: Cross multiply
    25,290.23x = 34,889.33 × 15,212.86
  4. Step 4: Simplify right side
    25,290.23x = 530,766,639.85
  5. Step 5: Solve for x
    x = 530,766,639.85/25,290.23
  6. Step 6: Final answer
    x = 20,987.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.