Home / 27,138.79-37,451.32-15,202.23

Finding the Fourth Proportional to 27,138.79, 37,451.32 and 15,202.23

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Solution

The fourth proportional to 27,138.79, 37,451.32 and 15,202.23 is: 20,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.79 : 37,451.32 = 15,202.23 : x
  2. Step 2: Convert to fraction form
    27,138.79/37,451.32 = 15,202.23/x
  3. Step 3: Cross multiply
    27,138.79x = 37,451.32 × 15,202.23
  4. Step 4: Simplify right side
    27,138.79x = 569,343,580.44
  5. Step 5: Solve for x
    x = 569,343,580.44/27,138.79
  6. Step 6: Final answer
    x = 20,978.96

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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.