Home / 21,972.67-30,286.91-17,184.35

Finding the Fourth Proportional to 21,972.67, 30,286.91 and 17,184.35

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Solution

The fourth proportional to 21,972.67, 30,286.91 and 17,184.35 is: 23,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.67 : 30,286.91 = 17,184.35 : x
  2. Step 2: Convert to fraction form
    21,972.67/30,286.91 = 17,184.35/x
  3. Step 3: Cross multiply
    21,972.67x = 30,286.91 × 17,184.35
  4. Step 4: Simplify right side
    21,972.67x = 520,460,980.54
  5. Step 5: Solve for x
    x = 520,460,980.54/21,972.67
  6. Step 6: Final answer
    x = 23,686.75

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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.