Home / 27,991.68-38,615.04-17,393.76

Finding the Fourth Proportional to 27,991.68, 38,615.04 and 17,393.76

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Solution

The fourth proportional to 27,991.68, 38,615.04 and 17,393.76 is: 23,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,991.68 : 38,615.04 = 17,393.76 : x
  2. Step 2: Convert to fraction form
    27,991.68/38,615.04 = 17,393.76/x
  3. Step 3: Cross multiply
    27,991.68x = 38,615.04 × 17,393.76
  4. Step 4: Simplify right side
    27,991.68x = 671,660,738.15
  5. Step 5: Solve for x
    x = 671,660,738.15/27,991.68
  6. Step 6: Final answer
    x = 23,995.01

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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.