Home / 20,930.00-28,873.26-13,862.34

Finding the Fourth Proportional to 20,930.00, 28,873.26 and 13,862.34

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Solution

The fourth proportional to 20,930.00, 28,873.26 and 13,862.34 is: 19,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,930.00 : 28,873.26 = 13,862.34 : x
  2. Step 2: Convert to fraction form
    20,930.00/28,873.26 = 13,862.34/x
  3. Step 3: Cross multiply
    20,930.00x = 28,873.26 × 13,862.34
  4. Step 4: Simplify right side
    20,930.00x = 400,250,947.03
  5. Step 5: Solve for x
    x = 400,250,947.03/20,930.00
  6. Step 6: Final answer
    x = 19,123.32

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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.