Home / 27,643.68-38,149.44-15,069.12

Finding the Fourth Proportional to 27,643.68, 38,149.44 and 15,069.12

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Solution

The fourth proportional to 27,643.68, 38,149.44 and 15,069.12 is: 20,796.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.68 : 38,149.44 = 15,069.12 : x
  2. Step 2: Convert to fraction form
    27,643.68/38,149.44 = 15,069.12/x
  3. Step 3: Cross multiply
    27,643.68x = 38,149.44 × 15,069.12
  4. Step 4: Simplify right side
    27,643.68x = 574,878,489.29
  5. Step 5: Solve for x
    x = 574,878,489.29/27,643.68
  6. Step 6: Final answer
    x = 20,796.02

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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.