Home / 54,015.12-81,024.30-18,964.80

Finding the Fourth Proportional to 54,015.12, 81,024.30 and 18,964.80

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Solution

The fourth proportional to 54,015.12, 81,024.30 and 18,964.80 is: 28,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.12 : 81,024.30 = 18,964.80 : x
  2. Step 2: Convert to fraction form
    54,015.12/81,024.30 = 18,964.80/x
  3. Step 3: Cross multiply
    54,015.12x = 81,024.30 × 18,964.80
  4. Step 4: Simplify right side
    54,015.12x = 1,536,609,644.64
  5. Step 5: Solve for x
    x = 1,536,609,644.64/54,015.12
  6. Step 6: Final answer
    x = 28,447.77

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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.