Home / 30,554.11-45,735.29-21,010.74

Finding the Fourth Proportional to 30,554.11, 45,735.29 and 21,010.74

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Solution

The fourth proportional to 30,554.11, 45,735.29 and 21,010.74 is: 31,450.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,554.11 : 45,735.29 = 21,010.74 : x
  2. Step 2: Convert to fraction form
    30,554.11/45,735.29 = 21,010.74/x
  3. Step 3: Cross multiply
    30,554.11x = 45,735.29 × 21,010.74
  4. Step 4: Simplify right side
    30,554.11x = 960,932,089.24
  5. Step 5: Solve for x
    x = 960,932,089.24/30,554.11
  6. Step 6: Final answer
    x = 31,450.17

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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.