Home / 30,817.64-42,529.38-18,716.04

Finding the Fourth Proportional to 30,817.64, 42,529.38 and 18,716.04

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Solution

The fourth proportional to 30,817.64, 42,529.38 and 18,716.04 is: 25,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,817.64 : 42,529.38 = 18,716.04 : x
  2. Step 2: Convert to fraction form
    30,817.64/42,529.38 = 18,716.04/x
  3. Step 3: Cross multiply
    30,817.64x = 42,529.38 × 18,716.04
  4. Step 4: Simplify right side
    30,817.64x = 795,981,577.26
  5. Step 5: Solve for x
    x = 795,981,577.26/30,817.64
  6. Step 6: Final answer
    x = 25,828.76

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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.