Home / 30,625.97-42,262.76-18,709.25

Finding the Fourth Proportional to 30,625.97, 42,262.76 and 18,709.25

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Solution

The fourth proportional to 30,625.97, 42,262.76 and 18,709.25 is: 25,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,625.97 : 42,262.76 = 18,709.25 : x
  2. Step 2: Convert to fraction form
    30,625.97/42,262.76 = 18,709.25/x
  3. Step 3: Cross multiply
    30,625.97x = 42,262.76 × 18,709.25
  4. Step 4: Simplify right side
    30,625.97x = 790,704,377.99
  5. Step 5: Solve for x
    x = 790,704,377.99/30,625.97
  6. Step 6: Final answer
    x = 25,818.10

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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.