Home / 30,276.30-45,414.45-15,480.30

Finding the Fourth Proportional to 30,276.30, 45,414.45 and 15,480.30

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Solution

The fourth proportional to 30,276.30, 45,414.45 and 15,480.30 is: 23,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.30 : 45,414.45 = 15,480.30 : x
  2. Step 2: Convert to fraction form
    30,276.30/45,414.45 = 15,480.30/x
  3. Step 3: Cross multiply
    30,276.30x = 45,414.45 × 15,480.30
  4. Step 4: Simplify right side
    30,276.30x = 703,029,310.34
  5. Step 5: Solve for x
    x = 703,029,310.34/30,276.30
  6. Step 6: Final answer
    x = 23,220.45

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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.