Home / 56,306.96-84,483-21,256.56

Finding the Fourth Proportional to 56,306.96, 84,483 and 21,256.56

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Solution

The fourth proportional to 56,306.96, 84,483 and 21,256.56 is: 31,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,306.96 : 84,483 = 21,256.56 : x
  2. Step 2: Convert to fraction form
    56,306.96/84,483 = 21,256.56/x
  3. Step 3: Cross multiply
    56,306.96x = 84,483 × 21,256.56
  4. Step 4: Simplify right side
    56,306.96x = 1,795,817,958.48
  5. Step 5: Solve for x
    x = 1,795,817,958.48/56,306.96
  6. Step 6: Final answer
    x = 31,893.36

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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.