Home / 27,419.68-41,129.56-6,643.12

Finding the Fourth Proportional to 27,419.68, 41,129.56 and 6,643.12

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Solution

The fourth proportional to 27,419.68, 41,129.56 and 6,643.12 is: 9,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,419.68 : 41,129.56 = 6,643.12 : x
  2. Step 2: Convert to fraction form
    27,419.68/41,129.56 = 6,643.12/x
  3. Step 3: Cross multiply
    27,419.68x = 41,129.56 × 6,643.12
  4. Step 4: Simplify right side
    27,419.68x = 273,228,602.63
  5. Step 5: Solve for x
    x = 273,228,602.63/27,419.68
  6. Step 6: Final answer
    x = 9,964.69

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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.