Home / 30,682.12-42,348.84-18,755.46

Finding the Fourth Proportional to 30,682.12, 42,348.84 and 18,755.46

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Solution

The fourth proportional to 30,682.12, 42,348.84 and 18,755.46 is: 25,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,682.12 : 42,348.84 = 18,755.46 : x
  2. Step 2: Convert to fraction form
    30,682.12/42,348.84 = 18,755.46/x
  3. Step 3: Cross multiply
    30,682.12x = 42,348.84 × 18,755.46
  4. Step 4: Simplify right side
    30,682.12x = 794,271,974.67
  5. Step 5: Solve for x
    x = 794,271,974.67/30,682.12
  6. Step 6: Final answer
    x = 25,887.13

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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.