Home / 30,617.60-45,883.20-15,000.80

Finding the Fourth Proportional to 30,617.60, 45,883.20 and 15,000.80

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Solution

The fourth proportional to 30,617.60, 45,883.20 and 15,000.80 is: 22,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.60 : 45,883.20 = 15,000.80 : x
  2. Step 2: Convert to fraction form
    30,617.60/45,883.20 = 15,000.80/x
  3. Step 3: Cross multiply
    30,617.60x = 45,883.20 × 15,000.80
  4. Step 4: Simplify right side
    30,617.60x = 688,284,706.56
  5. Step 5: Solve for x
    x = 688,284,706.56/30,617.60
  6. Step 6: Final answer
    x = 22,480.03

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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.