Home / 20,903.12-28,846.52-11,472.04

Finding the Fourth Proportional to 20,903.12, 28,846.52 and 11,472.04

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Solution

The fourth proportional to 20,903.12, 28,846.52 and 11,472.04 is: 15,831.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.12 : 28,846.52 = 11,472.04 : x
  2. Step 2: Convert to fraction form
    20,903.12/28,846.52 = 11,472.04/x
  3. Step 3: Cross multiply
    20,903.12x = 28,846.52 × 11,472.04
  4. Step 4: Simplify right side
    20,903.12x = 330,928,431.30
  5. Step 5: Solve for x
    x = 330,928,431.30/20,903.12
  6. Step 6: Final answer
    x = 15,831.53

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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.