Home / 38,648.33-57,994.06-20,878.65

Finding the Fourth Proportional to 38,648.33, 57,994.06 and 20,878.65

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Solution

The fourth proportional to 38,648.33, 57,994.06 and 20,878.65 is: 31,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,648.33 : 57,994.06 = 20,878.65 : x
  2. Step 2: Convert to fraction form
    38,648.33/57,994.06 = 20,878.65/x
  3. Step 3: Cross multiply
    38,648.33x = 57,994.06 × 20,878.65
  4. Step 4: Simplify right side
    38,648.33x = 1,210,837,680.82
  5. Step 5: Solve for x
    x = 1,210,837,680.82/38,648.33
  6. Step 6: Final answer
    x = 31,329.62

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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.