Home / 27,655.74-38,160.99-15,716.52

Finding the Fourth Proportional to 27,655.74, 38,160.99 and 15,716.52

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Solution

The fourth proportional to 27,655.74, 38,160.99 and 15,716.52 is: 21,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,655.74 : 38,160.99 = 15,716.52 : x
  2. Step 2: Convert to fraction form
    27,655.74/38,160.99 = 15,716.52/x
  3. Step 3: Cross multiply
    27,655.74x = 38,160.99 × 15,716.52
  4. Step 4: Simplify right side
    27,655.74x = 599,757,962.55
  5. Step 5: Solve for x
    x = 599,757,962.55/27,655.74
  6. Step 6: Final answer
    x = 21,686.56

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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.