Home / 43,708.40-65,507.70-18,719

Finding the Fourth Proportional to 43,708.40, 65,507.70 and 18,719

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Solution

The fourth proportional to 43,708.40, 65,507.70 and 18,719 is: 28,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,708.40 : 65,507.70 = 18,719 : x
  2. Step 2: Convert to fraction form
    43,708.40/65,507.70 = 18,719/x
  3. Step 3: Cross multiply
    43,708.40x = 65,507.70 × 18,719
  4. Step 4: Simplify right side
    43,708.40x = 1,226,238,636.30
  5. Step 5: Solve for x
    x = 1,226,238,636.30/43,708.40
  6. Step 6: Final answer
    x = 28,054.99

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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.