Home / 27,339.60-37,728.24-15,403.20

Finding the Fourth Proportional to 27,339.60, 37,728.24 and 15,403.20

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Solution

The fourth proportional to 27,339.60, 37,728.24 and 15,403.20 is: 21,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,339.60 : 37,728.24 = 15,403.20 : x
  2. Step 2: Convert to fraction form
    27,339.60/37,728.24 = 15,403.20/x
  3. Step 3: Cross multiply
    27,339.60x = 37,728.24 × 15,403.20
  4. Step 4: Simplify right side
    27,339.60x = 581,135,626.37
  5. Step 5: Solve for x
    x = 581,135,626.37/27,339.60
  6. Step 6: Final answer
    x = 21,256.19

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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.