Home / 20,117.24-27,763.52-11,166.47

Finding the Fourth Proportional to 20,117.24, 27,763.52 and 11,166.47

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Solution

The fourth proportional to 20,117.24, 27,763.52 and 11,166.47 is: 15,410.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.24 : 27,763.52 = 11,166.47 : x
  2. Step 2: Convert to fraction form
    20,117.24/27,763.52 = 11,166.47/x
  3. Step 3: Cross multiply
    20,117.24x = 27,763.52 × 11,166.47
  4. Step 4: Simplify right side
    20,117.24x = 310,020,318.52
  5. Step 5: Solve for x
    x = 310,020,318.52/20,117.24
  6. Step 6: Final answer
    x = 15,410.68

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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.