Home / 27,419.22-37,840.26-15,478.20

Finding the Fourth Proportional to 27,419.22, 37,840.26 and 15,478.20

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Solution

The fourth proportional to 27,419.22, 37,840.26 and 15,478.20 is: 21,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,419.22 : 37,840.26 = 15,478.20 : x
  2. Step 2: Convert to fraction form
    27,419.22/37,840.26 = 15,478.20/x
  3. Step 3: Cross multiply
    27,419.22x = 37,840.26 × 15,478.20
  4. Step 4: Simplify right side
    27,419.22x = 585,699,112.33
  5. Step 5: Solve for x
    x = 585,699,112.33/27,419.22
  6. Step 6: Final answer
    x = 21,360.90

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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.