Home / 20,222.28-30,332.49-7,748.18

Finding the Fourth Proportional to 20,222.28, 30,332.49 and 7,748.18

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Solution

The fourth proportional to 20,222.28, 30,332.49 and 7,748.18 is: 11,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.28 : 30,332.49 = 7,748.18 : x
  2. Step 2: Convert to fraction form
    20,222.28/30,332.49 = 7,748.18/x
  3. Step 3: Cross multiply
    20,222.28x = 30,332.49 × 7,748.18
  4. Step 4: Simplify right side
    20,222.28x = 235,021,440.71
  5. Step 5: Solve for x
    x = 235,021,440.71/20,222.28
  6. Step 6: Final answer
    x = 11,621.91

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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.