Home / 43,686.31-65,529.54-18,724.41

Finding the Fourth Proportional to 43,686.31, 65,529.54 and 18,724.41

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Solution

The fourth proportional to 43,686.31, 65,529.54 and 18,724.41 is: 28,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,686.31 : 65,529.54 = 18,724.41 : x
  2. Step 2: Convert to fraction form
    43,686.31/65,529.54 = 18,724.41/x
  3. Step 3: Cross multiply
    43,686.31x = 65,529.54 × 18,724.41
  4. Step 4: Simplify right side
    43,686.31x = 1,227,001,552.80
  5. Step 5: Solve for x
    x = 1,227,001,552.80/43,686.31
  6. Step 6: Final answer
    x = 28,086.64

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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.