Home / 30,391.20-41,938.76-19,066.79

Finding the Fourth Proportional to 30,391.20, 41,938.76 and 19,066.79

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Solution

The fourth proportional to 30,391.20, 41,938.76 and 19,066.79 is: 26,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.20 : 41,938.76 = 19,066.79 : x
  2. Step 2: Convert to fraction form
    30,391.20/41,938.76 = 19,066.79/x
  3. Step 3: Cross multiply
    30,391.20x = 41,938.76 × 19,066.79
  4. Step 4: Simplify right side
    30,391.20x = 799,637,682.29
  5. Step 5: Solve for x
    x = 799,637,682.29/30,391.20
  6. Step 6: Final answer
    x = 26,311.49

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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.