Home / 30,714.84-42,385.97-17,286.08

Finding the Fourth Proportional to 30,714.84, 42,385.97 and 17,286.08

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Solution

The fourth proportional to 30,714.84, 42,385.97 and 17,286.08 is: 23,854.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,714.84 : 42,385.97 = 17,286.08 : x
  2. Step 2: Convert to fraction form
    30,714.84/42,385.97 = 17,286.08/x
  3. Step 3: Cross multiply
    30,714.84x = 42,385.97 × 17,286.08
  4. Step 4: Simplify right side
    30,714.84x = 732,686,969.94
  5. Step 5: Solve for x
    x = 732,686,969.94/30,714.84
  6. Step 6: Final answer
    x = 23,854.49

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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.