Home / 21,155.58-29,195.03-11,595.35

Finding the Fourth Proportional to 21,155.58, 29,195.03 and 11,595.35

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Solution

The fourth proportional to 21,155.58, 29,195.03 and 11,595.35 is: 16,001.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.58 : 29,195.03 = 11,595.35 : x
  2. Step 2: Convert to fraction form
    21,155.58/29,195.03 = 11,595.35/x
  3. Step 3: Cross multiply
    21,155.58x = 29,195.03 × 11,595.35
  4. Step 4: Simplify right side
    21,155.58x = 338,526,693.09
  5. Step 5: Solve for x
    x = 338,526,693.09/21,155.58
  6. Step 6: Final answer
    x = 16,001.77

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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.