Home / 25,685.35-38,502.82-12,354.68

Finding the Fourth Proportional to 25,685.35, 38,502.82 and 12,354.68

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Solution

The fourth proportional to 25,685.35, 38,502.82 and 12,354.68 is: 18,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.35 : 38,502.82 = 12,354.68 : x
  2. Step 2: Convert to fraction form
    25,685.35/38,502.82 = 12,354.68/x
  3. Step 3: Cross multiply
    25,685.35x = 38,502.82 × 12,354.68
  4. Step 4: Simplify right side
    25,685.35x = 475,689,880.57
  5. Step 5: Solve for x
    x = 475,689,880.57/25,685.35
  6. Step 6: Final answer
    x = 18,519.89

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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.