Home / 27,817.84-38,388.36-15,243.04

Finding the Fourth Proportional to 27,817.84, 38,388.36 and 15,243.04

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Solution

The fourth proportional to 27,817.84, 38,388.36 and 15,243.04 is: 21,035.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.84 : 38,388.36 = 15,243.04 : x
  2. Step 2: Convert to fraction form
    27,817.84/38,388.36 = 15,243.04/x
  3. Step 3: Cross multiply
    27,817.84x = 38,388.36 × 15,243.04
  4. Step 4: Simplify right side
    27,817.84x = 585,155,307.01
  5. Step 5: Solve for x
    x = 585,155,307.01/27,817.84
  6. Step 6: Final answer
    x = 21,035.25

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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.