Home / 30,306.12-41,822.40-16,878.54

Finding the Fourth Proportional to 30,306.12, 41,822.40 and 16,878.54

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Solution

The fourth proportional to 30,306.12, 41,822.40 and 16,878.54 is: 23,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.12 : 41,822.40 = 16,878.54 : x
  2. Step 2: Convert to fraction form
    30,306.12/41,822.40 = 16,878.54/x
  3. Step 3: Cross multiply
    30,306.12x = 41,822.40 × 16,878.54
  4. Step 4: Simplify right side
    30,306.12x = 705,901,051.30
  5. Step 5: Solve for x
    x = 705,901,051.30/30,306.12
  6. Step 6: Final answer
    x = 23,292.36

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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.