Home / 27,515.72-37,969.62-15,576.32

Finding the Fourth Proportional to 27,515.72, 37,969.62 and 15,576.32

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Solution

The fourth proportional to 27,515.72, 37,969.62 and 15,576.32 is: 21,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.72 : 37,969.62 = 15,576.32 : x
  2. Step 2: Convert to fraction form
    27,515.72/37,969.62 = 15,576.32/x
  3. Step 3: Cross multiply
    27,515.72x = 37,969.62 × 15,576.32
  4. Step 4: Simplify right side
    27,515.72x = 591,426,951.40
  5. Step 5: Solve for x
    x = 591,426,951.40/27,515.72
  6. Step 6: Final answer
    x = 21,494.15

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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.