Home / 33,745.12-46,549.60-21,000.40

Finding the Fourth Proportional to 33,745.12, 46,549.60 and 21,000.40

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Solution

The fourth proportional to 33,745.12, 46,549.60 and 21,000.40 is: 28,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,745.12 : 46,549.60 = 21,000.40 : x
  2. Step 2: Convert to fraction form
    33,745.12/46,549.60 = 21,000.40/x
  3. Step 3: Cross multiply
    33,745.12x = 46,549.60 × 21,000.40
  4. Step 4: Simplify right side
    33,745.12x = 977,560,219.84
  5. Step 5: Solve for x
    x = 977,560,219.84/33,745.12
  6. Step 6: Final answer
    x = 28,968.94

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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.