Home / 41,398.95-57,021.72-31,820.52

Finding the Fourth Proportional to 41,398.95, 57,021.72 and 31,820.52

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Solution

The fourth proportional to 41,398.95, 57,021.72 and 31,820.52 is: 43,828.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,398.95 : 57,021.72 = 31,820.52 : x
  2. Step 2: Convert to fraction form
    41,398.95/57,021.72 = 31,820.52/x
  3. Step 3: Cross multiply
    41,398.95x = 57,021.72 × 31,820.52
  4. Step 4: Simplify right side
    41,398.95x = 1,814,460,781.69
  5. Step 5: Solve for x
    x = 1,814,460,781.69/41,398.95
  6. Step 6: Final answer
    x = 43,828.67

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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.