Home / 27,918.40-38,526.96-15,342.88

Finding the Fourth Proportional to 27,918.40, 38,526.96 and 15,342.88

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Solution

The fourth proportional to 27,918.40, 38,526.96 and 15,342.88 is: 21,172.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.40 : 38,526.96 = 15,342.88 : x
  2. Step 2: Convert to fraction form
    27,918.40/38,526.96 = 15,342.88/x
  3. Step 3: Cross multiply
    27,918.40x = 38,526.96 × 15,342.88
  4. Step 4: Simplify right side
    27,918.40x = 591,114,524.04
  5. Step 5: Solve for x
    x = 591,114,524.04/27,918.40
  6. Step 6: Final answer
    x = 21,172.94

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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.