Home / 28,262.79-38,994.66-18,197.06

Finding the Fourth Proportional to 28,262.79, 38,994.66 and 18,197.06

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Solution

The fourth proportional to 28,262.79, 38,994.66 and 18,197.06 is: 25,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.79 : 38,994.66 = 18,197.06 : x
  2. Step 2: Convert to fraction form
    28,262.79/38,994.66 = 18,197.06/x
  3. Step 3: Cross multiply
    28,262.79x = 38,994.66 × 18,197.06
  4. Step 4: Simplify right side
    28,262.79x = 709,587,972.73
  5. Step 5: Solve for x
    x = 709,587,972.73/28,262.79
  6. Step 6: Final answer
    x = 25,106.79

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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.