Home / 20,899.55-31,360.08-13,884.41

Finding the Fourth Proportional to 20,899.55, 31,360.08 and 13,884.41

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Solution

The fourth proportional to 20,899.55, 31,360.08 and 13,884.41 is: 20,833.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.55 : 31,360.08 = 13,884.41 : x
  2. Step 2: Convert to fraction form
    20,899.55/31,360.08 = 13,884.41/x
  3. Step 3: Cross multiply
    20,899.55x = 31,360.08 × 13,884.41
  4. Step 4: Simplify right side
    20,899.55x = 435,416,208.35
  5. Step 5: Solve for x
    x = 435,416,208.35/20,899.55
  6. Step 6: Final answer
    x = 20,833.76

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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.