Home / 27,817.08-38,387.72-15,242.28

Finding the Fourth Proportional to 27,817.08, 38,387.72 and 15,242.28

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Solution

The fourth proportional to 27,817.08, 38,387.72 and 15,242.28 is: 21,034.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.08 : 38,387.72 = 15,242.28 : x
  2. Step 2: Convert to fraction form
    27,817.08/38,387.72 = 15,242.28/x
  3. Step 3: Cross multiply
    27,817.08x = 38,387.72 × 15,242.28
  4. Step 4: Simplify right side
    27,817.08x = 585,116,376.80
  5. Step 5: Solve for x
    x = 585,116,376.80/27,817.08
  6. Step 6: Final answer
    x = 21,034.43

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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.