Home / 23,061.34-31,827.66-12,991.72

Finding the Fourth Proportional to 23,061.34, 31,827.66 and 12,991.72

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Solution

The fourth proportional to 23,061.34, 31,827.66 and 12,991.72 is: 17,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,061.34 : 31,827.66 = 12,991.72 : x
  2. Step 2: Convert to fraction form
    23,061.34/31,827.66 = 12,991.72/x
  3. Step 3: Cross multiply
    23,061.34x = 31,827.66 × 12,991.72
  4. Step 4: Simplify right side
    23,061.34x = 413,496,046.98
  5. Step 5: Solve for x
    x = 413,496,046.98/23,061.34
  6. Step 6: Final answer
    x = 17,930.27

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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.