Home / 20,069.87-27,696.65-11,117.52

Finding the Fourth Proportional to 20,069.87, 27,696.65 and 11,117.52

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Solution

The fourth proportional to 20,069.87, 27,696.65 and 11,117.52 is: 15,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.87 : 27,696.65 = 11,117.52 : x
  2. Step 2: Convert to fraction form
    20,069.87/27,696.65 = 11,117.52/x
  3. Step 3: Cross multiply
    20,069.87x = 27,696.65 × 11,117.52
  4. Step 4: Simplify right side
    20,069.87x = 307,918,004.72
  5. Step 5: Solve for x
    x = 307,918,004.72/20,069.87
  6. Step 6: Final answer
    x = 15,342.31

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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.