Home / 22,101.32-30,501.87-13,609.08

Finding the Fourth Proportional to 22,101.32, 30,501.87 and 13,609.08

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Solution

The fourth proportional to 22,101.32, 30,501.87 and 13,609.08 is: 18,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,101.32 : 30,501.87 = 13,609.08 : x
  2. Step 2: Convert to fraction form
    22,101.32/30,501.87 = 13,609.08/x
  3. Step 3: Cross multiply
    22,101.32x = 30,501.87 × 13,609.08
  4. Step 4: Simplify right side
    22,101.32x = 415,102,337.95
  5. Step 5: Solve for x
    x = 415,102,337.95/22,101.32
  6. Step 6: Final answer
    x = 18,781.79

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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.