Home / 27,729.88-38,262.81-15,793.45

Finding the Fourth Proportional to 27,729.88, 38,262.81 and 15,793.45

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Solution

The fourth proportional to 27,729.88, 38,262.81 and 15,793.45 is: 21,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.88 : 38,262.81 = 15,793.45 : x
  2. Step 2: Convert to fraction form
    27,729.88/38,262.81 = 15,793.45/x
  3. Step 3: Cross multiply
    27,729.88x = 38,262.81 × 15,793.45
  4. Step 4: Simplify right side
    27,729.88x = 604,301,776.59
  5. Step 5: Solve for x
    x = 604,301,776.59/27,729.88
  6. Step 6: Final answer
    x = 21,792.44

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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.