Home / 22,520.36-31,076.16-12,956.96

Finding the Fourth Proportional to 22,520.36, 31,076.16 and 12,956.96

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Solution

The fourth proportional to 22,520.36, 31,076.16 and 12,956.96 is: 17,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.36 : 31,076.16 = 12,956.96 : x
  2. Step 2: Convert to fraction form
    22,520.36/31,076.16 = 12,956.96/x
  3. Step 3: Cross multiply
    22,520.36x = 31,076.16 × 12,956.96
  4. Step 4: Simplify right side
    22,520.36x = 402,652,562.07
  5. Step 5: Solve for x
    x = 402,652,562.07/22,520.36
  6. Step 6: Final answer
    x = 17,879.49

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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.