Home / 25,679.07-38,519.70-8,148.51

Finding the Fourth Proportional to 25,679.07, 38,519.70 and 8,148.51

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Solution

The fourth proportional to 25,679.07, 38,519.70 and 8,148.51 is: 12,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,679.07 : 38,519.70 = 8,148.51 : x
  2. Step 2: Convert to fraction form
    25,679.07/38,519.70 = 8,148.51/x
  3. Step 3: Cross multiply
    25,679.07x = 38,519.70 × 8,148.51
  4. Step 4: Simplify right side
    25,679.07x = 313,878,160.65
  5. Step 5: Solve for x
    x = 313,878,160.65/25,679.07
  6. Step 6: Final answer
    x = 12,223.11

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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.