Home / 43,430.82-65,145.02-18,458.34

Finding the Fourth Proportional to 43,430.82, 65,145.02 and 18,458.34

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Solution

The fourth proportional to 43,430.82, 65,145.02 and 18,458.34 is: 27,686.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,430.82 : 65,145.02 = 18,458.34 : x
  2. Step 2: Convert to fraction form
    43,430.82/65,145.02 = 18,458.34/x
  3. Step 3: Cross multiply
    43,430.82x = 65,145.02 × 18,458.34
  4. Step 4: Simplify right side
    43,430.82x = 1,202,468,836.18
  5. Step 5: Solve for x
    x = 1,202,468,836.18/43,430.82
  6. Step 6: Final answer
    x = 27,686.99

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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.