Home / 30,664.11-42,312.68-17,745.60

Finding the Fourth Proportional to 30,664.11, 42,312.68 and 17,745.60

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Solution

The fourth proportional to 30,664.11, 42,312.68 and 17,745.60 is: 24,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,664.11 : 42,312.68 = 17,745.60 : x
  2. Step 2: Convert to fraction form
    30,664.11/42,312.68 = 17,745.60/x
  3. Step 3: Cross multiply
    30,664.11x = 42,312.68 × 17,745.60
  4. Step 4: Simplify right side
    30,664.11x = 750,863,593.92
  5. Step 5: Solve for x
    x = 750,863,593.92/30,664.11
  6. Step 6: Final answer
    x = 24,486.73

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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.