Home / 30,200.70-45,301.49-9,140.94

Finding the Fourth Proportional to 30,200.70, 45,301.49 and 9,140.94

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Solution

The fourth proportional to 30,200.70, 45,301.49 and 9,140.94 is: 13,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.70 : 45,301.49 = 9,140.94 : x
  2. Step 2: Convert to fraction form
    30,200.70/45,301.49 = 9,140.94/x
  3. Step 3: Cross multiply
    30,200.70x = 45,301.49 × 9,140.94
  4. Step 4: Simplify right side
    30,200.70x = 414,098,156.30
  5. Step 5: Solve for x
    x = 414,098,156.30/30,200.70
  6. Step 6: Final answer
    x = 13,711.54

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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.