Home / 30,428.12-41,991.67-17,000.85

Finding the Fourth Proportional to 30,428.12, 41,991.67 and 17,000.85

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Solution

The fourth proportional to 30,428.12, 41,991.67 and 17,000.85 is: 23,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.12 : 41,991.67 = 17,000.85 : x
  2. Step 2: Convert to fraction form
    30,428.12/41,991.67 = 17,000.85/x
  3. Step 3: Cross multiply
    30,428.12x = 41,991.67 × 17,000.85
  4. Step 4: Simplify right side
    30,428.12x = 713,894,166.01
  5. Step 5: Solve for x
    x = 713,894,166.01/30,428.12
  6. Step 6: Final answer
    x = 23,461.66

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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.