Home / 13,829.76-20,730.24-10,356.48

Finding the Fourth Proportional to 13,829.76, 20,730.24 and 10,356.48

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Solution

The fourth proportional to 13,829.76, 20,730.24 and 10,356.48 is: 15,523.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.76 : 20,730.24 = 10,356.48 : x
  2. Step 2: Convert to fraction form
    13,829.76/20,730.24 = 10,356.48/x
  3. Step 3: Cross multiply
    13,829.76x = 20,730.24 × 10,356.48
  4. Step 4: Simplify right side
    13,829.76x = 214,692,315.96
  5. Step 5: Solve for x
    x = 214,692,315.96/13,829.76
  6. Step 6: Final answer
    x = 15,523.94

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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.