Home / 27,515.82-37,973.64-15,417.27

Finding the Fourth Proportional to 27,515.82, 37,973.64 and 15,417.27

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Solution

The fourth proportional to 27,515.82, 37,973.64 and 15,417.27 is: 21,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.82 : 37,973.64 = 15,417.27 : x
  2. Step 2: Convert to fraction form
    27,515.82/37,973.64 = 15,417.27/x
  3. Step 3: Cross multiply
    27,515.82x = 37,973.64 × 15,417.27
  4. Step 4: Simplify right side
    27,515.82x = 585,449,918.58
  5. Step 5: Solve for x
    x = 585,449,918.58/27,515.82
  6. Step 6: Final answer
    x = 21,276.85

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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.