Home / 13,880.28-20,816.10-4,020.24

Finding the Fourth Proportional to 13,880.28, 20,816.10 and 4,020.24

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Solution

The fourth proportional to 13,880.28, 20,816.10 and 4,020.24 is: 6,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.28 : 20,816.10 = 4,020.24 : x
  2. Step 2: Convert to fraction form
    13,880.28/20,816.10 = 4,020.24/x
  3. Step 3: Cross multiply
    13,880.28x = 20,816.10 × 4,020.24
  4. Step 4: Simplify right side
    13,880.28x = 83,685,717.86
  5. Step 5: Solve for x
    x = 83,685,717.86/13,880.28
  6. Step 6: Final answer
    x = 6,029.11

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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.