Home / 43,519.56-65,270.70-21,323.40

Finding the Fourth Proportional to 43,519.56, 65,270.70 and 21,323.40

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Solution

The fourth proportional to 43,519.56, 65,270.70 and 21,323.40 is: 31,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,519.56 : 65,270.70 = 21,323.40 : x
  2. Step 2: Convert to fraction form
    43,519.56/65,270.70 = 21,323.40/x
  3. Step 3: Cross multiply
    43,519.56x = 65,270.70 × 21,323.40
  4. Step 4: Simplify right side
    43,519.56x = 1,391,793,244.38
  5. Step 5: Solve for x
    x = 1,391,793,244.38/43,519.56
  6. Step 6: Final answer
    x = 31,980.87

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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.