Home / 14,056.20-21,108.60-13,618.80

Finding the Fourth Proportional to 14,056.20, 21,108.60 and 13,618.80

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Solution

The fourth proportional to 14,056.20, 21,108.60 and 13,618.80 is: 20,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,056.20 : 21,108.60 = 13,618.80 : x
  2. Step 2: Convert to fraction form
    14,056.20/21,108.60 = 13,618.80/x
  3. Step 3: Cross multiply
    14,056.20x = 21,108.60 × 13,618.80
  4. Step 4: Simplify right side
    14,056.20x = 287,473,801.68
  5. Step 5: Solve for x
    x = 287,473,801.68/14,056.20
  6. Step 6: Final answer
    x = 20,451.74

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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.