Home / 27,155.54-37,475.72-15,218.78

Finding the Fourth Proportional to 27,155.54, 37,475.72 and 15,218.78

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Solution

The fourth proportional to 27,155.54, 37,475.72 and 15,218.78 is: 21,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.54 : 37,475.72 = 15,218.78 : x
  2. Step 2: Convert to fraction form
    27,155.54/37,475.72 = 15,218.78/x
  3. Step 3: Cross multiply
    27,155.54x = 37,475.72 × 15,218.78
  4. Step 4: Simplify right side
    27,155.54x = 570,334,474.55
  5. Step 5: Solve for x
    x = 570,334,474.55/27,155.54
  6. Step 6: Final answer
    x = 21,002.51

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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.