Home / 27,090.85-40,609.62-15,831.90

Finding the Fourth Proportional to 27,090.85, 40,609.62 and 15,831.90

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Solution

The fourth proportional to 27,090.85, 40,609.62 and 15,831.90 is: 23,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,090.85 : 40,609.62 = 15,831.90 : x
  2. Step 2: Convert to fraction form
    27,090.85/40,609.62 = 15,831.90/x
  3. Step 3: Cross multiply
    27,090.85x = 40,609.62 × 15,831.90
  4. Step 4: Simplify right side
    27,090.85x = 642,927,442.88
  5. Step 5: Solve for x
    x = 642,927,442.88/27,090.85
  6. Step 6: Final answer
    x = 23,732.27

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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.