Home / 31,564.36-43,539.42-18,808.75

Finding the Fourth Proportional to 31,564.36, 43,539.42 and 18,808.75

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Solution

The fourth proportional to 31,564.36, 43,539.42 and 18,808.75 is: 25,944.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,564.36 : 43,539.42 = 18,808.75 : x
  2. Step 2: Convert to fraction form
    31,564.36/43,539.42 = 18,808.75/x
  3. Step 3: Cross multiply
    31,564.36x = 43,539.42 × 18,808.75
  4. Step 4: Simplify right side
    31,564.36x = 818,922,065.93
  5. Step 5: Solve for x
    x = 818,922,065.93/31,564.36
  6. Step 6: Final answer
    x = 25,944.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.