Home / 19,090.12-26,331.04-18,447.88

Finding the Fourth Proportional to 19,090.12, 26,331.04 and 18,447.88

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Solution

The fourth proportional to 19,090.12, 26,331.04 and 18,447.88 is: 25,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.12 : 26,331.04 = 18,447.88 : x
  2. Step 2: Convert to fraction form
    19,090.12/26,331.04 = 18,447.88/x
  3. Step 3: Cross multiply
    19,090.12x = 26,331.04 × 18,447.88
  4. Step 4: Simplify right side
    19,090.12x = 485,751,866.20
  5. Step 5: Solve for x
    x = 485,751,866.20/19,090.12
  6. Step 6: Final answer
    x = 25,445.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.