Home / 27,137.40-37,449.68-15,200.80

Finding the Fourth Proportional to 27,137.40, 37,449.68 and 15,200.80

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Solution

The fourth proportional to 27,137.40, 37,449.68 and 15,200.80 is: 20,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,137.40 : 37,449.68 = 15,200.80 : x
  2. Step 2: Convert to fraction form
    27,137.40/37,449.68 = 15,200.80/x
  3. Step 3: Cross multiply
    27,137.40x = 37,449.68 × 15,200.80
  4. Step 4: Simplify right side
    27,137.40x = 569,264,926.12
  5. Step 5: Solve for x
    x = 569,264,926.12/27,137.40
  6. Step 6: Final answer
    x = 20,977.14

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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.