Home / 30,302.80-45,416.40-15,517.60

Finding the Fourth Proportional to 30,302.80, 45,416.40 and 15,517.60

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Solution

The fourth proportional to 30,302.80, 45,416.40 and 15,517.60 is: 23,257.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.80 : 45,416.40 = 15,517.60 : x
  2. Step 2: Convert to fraction form
    30,302.80/45,416.40 = 15,517.60/x
  3. Step 3: Cross multiply
    30,302.80x = 45,416.40 × 15,517.60
  4. Step 4: Simplify right side
    30,302.80x = 704,753,528.64
  5. Step 5: Solve for x
    x = 704,753,528.64/30,302.80
  6. Step 6: Final answer
    x = 23,257.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.