Home / 27,152.78-37,471.86-15,215.72

Finding the Fourth Proportional to 27,152.78, 37,471.86 and 15,215.72

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Solution

The fourth proportional to 27,152.78, 37,471.86 and 15,215.72 is: 20,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,152.78 : 37,471.86 = 15,215.72 : x
  2. Step 2: Convert to fraction form
    27,152.78/37,471.86 = 15,215.72/x
  3. Step 3: Cross multiply
    27,152.78x = 37,471.86 × 15,215.72
  4. Step 4: Simplify right side
    27,152.78x = 570,161,142.28
  5. Step 5: Solve for x
    x = 570,161,142.28/27,152.78
  6. Step 6: Final answer
    x = 20,998.26

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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.