Home / 20,544.77-28,351.76-11,113.31

Finding the Fourth Proportional to 20,544.77, 28,351.76 and 11,113.31

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Solution

The fourth proportional to 20,544.77, 28,351.76 and 11,113.31 is: 15,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.77 : 28,351.76 = 11,113.31 : x
  2. Step 2: Convert to fraction form
    20,544.77/28,351.76 = 11,113.31/x
  3. Step 3: Cross multiply
    20,544.77x = 28,351.76 × 11,113.31
  4. Step 4: Simplify right side
    20,544.77x = 315,081,700.60
  5. Step 5: Solve for x
    x = 315,081,700.60/20,544.77
  6. Step 6: Final answer
    x = 15,336.35

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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.