Home / 56,215.20-84,273.84-21,145.44

Finding the Fourth Proportional to 56,215.20, 84,273.84 and 21,145.44

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Solution

The fourth proportional to 56,215.20, 84,273.84 and 21,145.44 is: 31,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,215.20 : 84,273.84 = 21,145.44 : x
  2. Step 2: Convert to fraction form
    56,215.20/84,273.84 = 21,145.44/x
  3. Step 3: Cross multiply
    56,215.20x = 84,273.84 × 21,145.44
  4. Step 4: Simplify right side
    56,215.20x = 1,782,007,427.29
  5. Step 5: Solve for x
    x = 1,782,007,427.29/56,215.20
  6. Step 6: Final answer
    x = 31,699.74

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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.