Home / 30,920.24-42,653.04-19,568.96

Finding the Fourth Proportional to 30,920.24, 42,653.04 and 19,568.96

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Solution

The fourth proportional to 30,920.24, 42,653.04 and 19,568.96 is: 26,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.24 : 42,653.04 = 19,568.96 : x
  2. Step 2: Convert to fraction form
    30,920.24/42,653.04 = 19,568.96/x
  3. Step 3: Cross multiply
    30,920.24x = 42,653.04 × 19,568.96
  4. Step 4: Simplify right side
    30,920.24x = 834,675,633.64
  5. Step 5: Solve for x
    x = 834,675,633.64/30,920.24
  6. Step 6: Final answer
    x = 26,994.47

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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.