Home / 27,090.25-37,385.15-15,154.90

Finding the Fourth Proportional to 27,090.25, 37,385.15 and 15,154.90

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Solution

The fourth proportional to 27,090.25, 37,385.15 and 15,154.90 is: 20,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,090.25 : 37,385.15 = 15,154.90 : x
  2. Step 2: Convert to fraction form
    27,090.25/37,385.15 = 15,154.90/x
  3. Step 3: Cross multiply
    27,090.25x = 37,385.15 × 15,154.90
  4. Step 4: Simplify right side
    27,090.25x = 566,568,040.50
  5. Step 5: Solve for x
    x = 566,568,040.50/27,090.25
  6. Step 6: Final answer
    x = 20,914.10

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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.