Home / 30,234.48-45,320.40-21,893.64

Finding the Fourth Proportional to 30,234.48, 45,320.40 and 21,893.64

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Solution

The fourth proportional to 30,234.48, 45,320.40 and 21,893.64 is: 32,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,234.48 : 45,320.40 = 21,893.64 : x
  2. Step 2: Convert to fraction form
    30,234.48/45,320.40 = 21,893.64/x
  3. Step 3: Cross multiply
    30,234.48x = 45,320.40 × 21,893.64
  4. Step 4: Simplify right side
    30,234.48x = 992,228,522.26
  5. Step 5: Solve for x
    x = 992,228,522.26/30,234.48
  6. Step 6: Final answer
    x = 32,817.78

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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.