Home / 30,974.29-42,744.70-19,045.42

Finding the Fourth Proportional to 30,974.29, 42,744.70 and 19,045.42

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Solution

The fourth proportional to 30,974.29, 42,744.70 and 19,045.42 is: 26,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.29 : 42,744.70 = 19,045.42 : x
  2. Step 2: Convert to fraction form
    30,974.29/42,744.70 = 19,045.42/x
  3. Step 3: Cross multiply
    30,974.29x = 42,744.70 × 19,045.42
  4. Step 4: Simplify right side
    30,974.29x = 814,090,775.91
  5. Step 5: Solve for x
    x = 814,090,775.91/30,974.29
  6. Step 6: Final answer
    x = 26,282.79

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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.