Home / 25,486.12-38,160.66-20,786.74

Finding the Fourth Proportional to 25,486.12, 38,160.66 and 20,786.74

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Solution

The fourth proportional to 25,486.12, 38,160.66 and 20,786.74 is: 31,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,486.12 : 38,160.66 = 20,786.74 : x
  2. Step 2: Convert to fraction form
    25,486.12/38,160.66 = 20,786.74/x
  3. Step 3: Cross multiply
    25,486.12x = 38,160.66 × 20,786.74
  4. Step 4: Simplify right side
    25,486.12x = 793,235,717.65
  5. Step 5: Solve for x
    x = 793,235,717.65/25,486.12
  6. Step 6: Final answer
    x = 31,124.22

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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.