Home / 30,222.10-45,288.78-15,208.57

Finding the Fourth Proportional to 30,222.10, 45,288.78 and 15,208.57

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Solution

The fourth proportional to 30,222.10, 45,288.78 and 15,208.57 is: 22,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222.10 : 45,288.78 = 15,208.57 : x
  2. Step 2: Convert to fraction form
    30,222.10/45,288.78 = 15,208.57/x
  3. Step 3: Cross multiply
    30,222.10x = 45,288.78 × 15,208.57
  4. Step 4: Simplify right side
    30,222.10x = 688,777,580.84
  5. Step 5: Solve for x
    x = 688,777,580.84/30,222.10
  6. Step 6: Final answer
    x = 22,790.53

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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.