Home / 43,103.14-64,659.22-11,938.40

Finding the Fourth Proportional to 43,103.14, 64,659.22 and 11,938.40

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Solution

The fourth proportional to 43,103.14, 64,659.22 and 11,938.40 is: 17,908.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,103.14 : 64,659.22 = 11,938.40 : x
  2. Step 2: Convert to fraction form
    43,103.14/64,659.22 = 11,938.40/x
  3. Step 3: Cross multiply
    43,103.14x = 64,659.22 × 11,938.40
  4. Step 4: Simplify right side
    43,103.14x = 771,927,632.05
  5. Step 5: Solve for x
    x = 771,927,632.05/43,103.14
  6. Step 6: Final answer
    x = 17,908.85

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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.