Home / 20,335.01-28,063.55-11,383.07

Finding the Fourth Proportional to 20,335.01, 28,063.55 and 11,383.07

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Solution

The fourth proportional to 20,335.01, 28,063.55 and 11,383.07 is: 15,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.01 : 28,063.55 = 11,383.07 : x
  2. Step 2: Convert to fraction form
    20,335.01/28,063.55 = 11,383.07/x
  3. Step 3: Cross multiply
    20,335.01x = 28,063.55 × 11,383.07
  4. Step 4: Simplify right side
    20,335.01x = 319,449,242.24
  5. Step 5: Solve for x
    x = 319,449,242.24/20,335.01
  6. Step 6: Final answer
    x = 15,709.33

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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.