Home / 27,430.89-41,138.21-11,635.72

Finding the Fourth Proportional to 27,430.89, 41,138.21 and 11,635.72

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Solution

The fourth proportional to 27,430.89, 41,138.21 and 11,635.72 is: 17,450.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,430.89 : 41,138.21 = 11,635.72 : x
  2. Step 2: Convert to fraction form
    27,430.89/41,138.21 = 11,635.72/x
  3. Step 3: Cross multiply
    27,430.89x = 41,138.21 × 11,635.72
  4. Step 4: Simplify right side
    27,430.89x = 478,672,619.10
  5. Step 5: Solve for x
    x = 478,672,619.10/27,430.89
  6. Step 6: Final answer
    x = 17,450.13

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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.