Home / 29,682.12-40,989.12-19,090.20

Finding the Fourth Proportional to 29,682.12, 40,989.12 and 19,090.20

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Solution

The fourth proportional to 29,682.12, 40,989.12 and 19,090.20 is: 26,362.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,682.12 : 40,989.12 = 19,090.20 : x
  2. Step 2: Convert to fraction form
    29,682.12/40,989.12 = 19,090.20/x
  3. Step 3: Cross multiply
    29,682.12x = 40,989.12 × 19,090.20
  4. Step 4: Simplify right side
    29,682.12x = 782,490,498.62
  5. Step 5: Solve for x
    x = 782,490,498.62/29,682.12
  6. Step 6: Final answer
    x = 26,362.35

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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.