Home / 21,225.28-29,289.60-11,793.52

Finding the Fourth Proportional to 21,225.28, 29,289.60 and 11,793.52

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Solution

The fourth proportional to 21,225.28, 29,289.60 and 11,793.52 is: 16,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.28 : 29,289.60 = 11,793.52 : x
  2. Step 2: Convert to fraction form
    21,225.28/29,289.60 = 11,793.52/x
  3. Step 3: Cross multiply
    21,225.28x = 29,289.60 × 11,793.52
  4. Step 4: Simplify right side
    21,225.28x = 345,427,483.39
  5. Step 5: Solve for x
    x = 345,427,483.39/21,225.28
  6. Step 6: Final answer
    x = 16,274.34

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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.