Home / 20,221.10-27,779.70-16,673.30

Finding the Fourth Proportional to 20,221.10, 27,779.70 and 16,673.30

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Solution

The fourth proportional to 20,221.10, 27,779.70 and 16,673.30 is: 22,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.10 : 27,779.70 = 16,673.30 : x
  2. Step 2: Convert to fraction form
    20,221.10/27,779.70 = 16,673.30/x
  3. Step 3: Cross multiply
    20,221.10x = 27,779.70 × 16,673.30
  4. Step 4: Simplify right side
    20,221.10x = 463,179,272.01
  5. Step 5: Solve for x
    x = 463,179,272.01/20,221.10
  6. Step 6: Final answer
    x = 22,905.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.