Home / 42,774.04-64,170.96-13,191.22

Finding the Fourth Proportional to 42,774.04, 64,170.96 and 13,191.22

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Solution

The fourth proportional to 42,774.04, 64,170.96 and 13,191.22 is: 19,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,774.04 : 64,170.96 = 13,191.22 : x
  2. Step 2: Convert to fraction form
    42,774.04/64,170.96 = 13,191.22/x
  3. Step 3: Cross multiply
    42,774.04x = 64,170.96 × 13,191.22
  4. Step 4: Simplify right side
    42,774.04x = 846,493,250.97
  5. Step 5: Solve for x
    x = 846,493,250.97/42,774.04
  6. Step 6: Final answer
    x = 19,789.88

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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.