Home / 21,930.64-32,832.60-13,585.39

Finding the Fourth Proportional to 21,930.64, 32,832.60 and 13,585.39

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Solution

The fourth proportional to 21,930.64, 32,832.60 and 13,585.39 is: 20,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.64 : 32,832.60 = 13,585.39 : x
  2. Step 2: Convert to fraction form
    21,930.64/32,832.60 = 13,585.39/x
  3. Step 3: Cross multiply
    21,930.64x = 32,832.60 × 13,585.39
  4. Step 4: Simplify right side
    21,930.64x = 446,043,675.71
  5. Step 5: Solve for x
    x = 446,043,675.71/21,930.64
  6. Step 6: Final answer
    x = 20,338.84

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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.