Home / 27,774.40-38,328.36-15,199

Finding the Fourth Proportional to 27,774.40, 38,328.36 and 15,199

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Solution

The fourth proportional to 27,774.40, 38,328.36 and 15,199 is: 20,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,774.40 : 38,328.36 = 15,199 : x
  2. Step 2: Convert to fraction form
    27,774.40/38,328.36 = 15,199/x
  3. Step 3: Cross multiply
    27,774.40x = 38,328.36 × 15,199
  4. Step 4: Simplify right side
    27,774.40x = 582,552,743.64
  5. Step 5: Solve for x
    x = 582,552,743.64/27,774.40
  6. Step 6: Final answer
    x = 20,974.45

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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.