Home / 27,507.56-37,959.68-15,571.40

Finding the Fourth Proportional to 27,507.56, 37,959.68 and 15,571.40

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Solution

The fourth proportional to 27,507.56, 37,959.68 and 15,571.40 is: 21,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,507.56 : 37,959.68 = 15,571.40 : x
  2. Step 2: Convert to fraction form
    27,507.56/37,959.68 = 15,571.40/x
  3. Step 3: Cross multiply
    27,507.56x = 37,959.68 × 15,571.40
  4. Step 4: Simplify right side
    27,507.56x = 591,085,361.15
  5. Step 5: Solve for x
    x = 591,085,361.15/27,507.56
  6. Step 6: Final answer
    x = 21,488.11

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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.