Home / 22,530.12-31,092.21-12,321.74

Finding the Fourth Proportional to 22,530.12, 31,092.21 and 12,321.74

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Solution

The fourth proportional to 22,530.12, 31,092.21 and 12,321.74 is: 17,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,530.12 : 31,092.21 = 12,321.74 : x
  2. Step 2: Convert to fraction form
    22,530.12/31,092.21 = 12,321.74/x
  3. Step 3: Cross multiply
    22,530.12x = 31,092.21 × 12,321.74
  4. Step 4: Simplify right side
    22,530.12x = 383,109,972.18
  5. Step 5: Solve for x
    x = 383,109,972.18/22,530.12
  6. Step 6: Final answer
    x = 17,004.35

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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.