Home / 27,915.37-38,525.57-15,342.73

Finding the Fourth Proportional to 27,915.37, 38,525.57 and 15,342.73

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Solution

The fourth proportional to 27,915.37, 38,525.57 and 15,342.73 is: 21,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.37 : 38,525.57 = 15,342.73 : x
  2. Step 2: Convert to fraction form
    27,915.37/38,525.57 = 15,342.73/x
  3. Step 3: Cross multiply
    27,915.37x = 38,525.57 × 15,342.73
  4. Step 4: Simplify right side
    27,915.37x = 591,087,303.11
  5. Step 5: Solve for x
    x = 591,087,303.11/27,915.37
  6. Step 6: Final answer
    x = 21,174.26

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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.