Home / 30,220.46-45,329.30-10,500.56

Finding the Fourth Proportional to 30,220.46, 45,329.30 and 10,500.56

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Solution

The fourth proportional to 30,220.46, 45,329.30 and 10,500.56 is: 15,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.46 : 45,329.30 = 10,500.56 : x
  2. Step 2: Convert to fraction form
    30,220.46/45,329.30 = 10,500.56/x
  3. Step 3: Cross multiply
    30,220.46x = 45,329.30 × 10,500.56
  4. Step 4: Simplify right side
    30,220.46x = 475,982,755.26
  5. Step 5: Solve for x
    x = 475,982,755.26/30,220.46
  6. Step 6: Final answer
    x = 15,750.35

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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.