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Finding the Fourth Proportional to 43,930.24, 65,906.24 and 12,765.76

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Solution

The fourth proportional to 43,930.24, 65,906.24 and 12,765.76 is: 19,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,930.24 : 65,906.24 = 12,765.76 : x
  2. Step 2: Convert to fraction form
    43,930.24/65,906.24 = 12,765.76/x
  3. Step 3: Cross multiply
    43,930.24x = 65,906.24 × 12,765.76
  4. Step 4: Simplify right side
    43,930.24x = 841,343,242.34
  5. Step 5: Solve for x
    x = 841,343,242.34/43,930.24
  6. Step 6: Final answer
    x = 19,151.80

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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.