Home / 30,243.75-41,740.91-21,773.90

Finding the Fourth Proportional to 30,243.75, 41,740.91 and 21,773.90

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Solution

The fourth proportional to 30,243.75, 41,740.91 and 21,773.90 is: 30,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.75 : 41,740.91 = 21,773.90 : x
  2. Step 2: Convert to fraction form
    30,243.75/41,740.91 = 21,773.90/x
  3. Step 3: Cross multiply
    30,243.75x = 41,740.91 × 21,773.90
  4. Step 4: Simplify right side
    30,243.75x = 908,862,477.38
  5. Step 5: Solve for x
    x = 908,862,477.38/30,243.75
  6. Step 6: Final answer
    x = 30,051.25

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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.