Home / 22,002.48-30,364.20-15,729.84

Finding the Fourth Proportional to 22,002.48, 30,364.20 and 15,729.84

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Solution

The fourth proportional to 22,002.48, 30,364.20 and 15,729.84 is: 21,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.48 : 30,364.20 = 15,729.84 : x
  2. Step 2: Convert to fraction form
    22,002.48/30,364.20 = 15,729.84/x
  3. Step 3: Cross multiply
    22,002.48x = 30,364.20 × 15,729.84
  4. Step 4: Simplify right side
    22,002.48x = 477,624,007.73
  5. Step 5: Solve for x
    x = 477,624,007.73/22,002.48
  6. Step 6: Final answer
    x = 21,707.74

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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.