Home / 14,830.20-22,245.30-13,420.80

Finding the Fourth Proportional to 14,830.20, 22,245.30 and 13,420.80

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Solution

The fourth proportional to 14,830.20, 22,245.30 and 13,420.80 is: 20,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,830.20 : 22,245.30 = 13,420.80 : x
  2. Step 2: Convert to fraction form
    14,830.20/22,245.30 = 13,420.80/x
  3. Step 3: Cross multiply
    14,830.20x = 22,245.30 × 13,420.80
  4. Step 4: Simplify right side
    14,830.20x = 298,549,722.24
  5. Step 5: Solve for x
    x = 298,549,722.24/14,830.20
  6. Step 6: Final answer
    x = 20,131.20

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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.