Home / 38,211.43-52,733.42-21,215.67

Finding the Fourth Proportional to 38,211.43, 52,733.42 and 21,215.67

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Solution

The fourth proportional to 38,211.43, 52,733.42 and 21,215.67 is: 29,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,211.43 : 52,733.42 = 21,215.67 : x
  2. Step 2: Convert to fraction form
    38,211.43/52,733.42 = 21,215.67/x
  3. Step 3: Cross multiply
    38,211.43x = 52,733.42 × 21,215.67
  4. Step 4: Simplify right side
    38,211.43x = 1,118,775,021.18
  5. Step 5: Solve for x
    x = 1,118,775,021.18/38,211.43
  6. Step 6: Final answer
    x = 29,278.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.