Home / 38,085.82-57,137.07-11,430.70

Finding the Fourth Proportional to 38,085.82, 57,137.07 and 11,430.70

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Solution

The fourth proportional to 38,085.82, 57,137.07 and 11,430.70 is: 17,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,085.82 : 57,137.07 = 11,430.70 : x
  2. Step 2: Convert to fraction form
    38,085.82/57,137.07 = 11,430.70/x
  3. Step 3: Cross multiply
    38,085.82x = 57,137.07 × 11,430.70
  4. Step 4: Simplify right side
    38,085.82x = 653,116,706.05
  5. Step 5: Solve for x
    x = 653,116,706.05/38,085.82
  6. Step 6: Final answer
    x = 17,148.55

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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.