Home / 27,915.12-41,882.40-13,135.32

Finding the Fourth Proportional to 27,915.12, 41,882.40 and 13,135.32

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Solution

The fourth proportional to 27,915.12, 41,882.40 and 13,135.32 is: 19,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.12 : 41,882.40 = 13,135.32 : x
  2. Step 2: Convert to fraction form
    27,915.12/41,882.40 = 13,135.32/x
  3. Step 3: Cross multiply
    27,915.12x = 41,882.40 × 13,135.32
  4. Step 4: Simplify right side
    27,915.12x = 550,138,726.37
  5. Step 5: Solve for x
    x = 550,138,726.37/27,915.12
  6. Step 6: Final answer
    x = 19,707.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.