Home / 20,301.24-28,015.50-11,916.12

Finding the Fourth Proportional to 20,301.24, 28,015.50 and 11,916.12

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Solution

The fourth proportional to 20,301.24, 28,015.50 and 11,916.12 is: 16,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.24 : 28,015.50 = 11,916.12 : x
  2. Step 2: Convert to fraction form
    20,301.24/28,015.50 = 11,916.12/x
  3. Step 3: Cross multiply
    20,301.24x = 28,015.50 × 11,916.12
  4. Step 4: Simplify right side
    20,301.24x = 333,836,059.86
  5. Step 5: Solve for x
    x = 333,836,059.86/20,301.24
  6. Step 6: Final answer
    x = 16,444.12

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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.