Home / 27,131.13-37,440.09-15,031.12

Finding the Fourth Proportional to 27,131.13, 37,440.09 and 15,031.12

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Solution

The fourth proportional to 27,131.13, 37,440.09 and 15,031.12 is: 20,742.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,131.13 : 37,440.09 = 15,031.12 : x
  2. Step 2: Convert to fraction form
    27,131.13/37,440.09 = 15,031.12/x
  3. Step 3: Cross multiply
    27,131.13x = 37,440.09 × 15,031.12
  4. Step 4: Simplify right side
    27,131.13x = 562,766,485.60
  5. Step 5: Solve for x
    x = 562,766,485.60/27,131.13
  6. Step 6: Final answer
    x = 20,742.46

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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.