Home / 23,027.70-31,778.40-12,956.10

Finding the Fourth Proportional to 23,027.70, 31,778.40 and 12,956.10

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Solution

The fourth proportional to 23,027.70, 31,778.40 and 12,956.10 is: 17,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,027.70 : 31,778.40 = 12,956.10 : x
  2. Step 2: Convert to fraction form
    23,027.70/31,778.40 = 12,956.10/x
  3. Step 3: Cross multiply
    23,027.70x = 31,778.40 × 12,956.10
  4. Step 4: Simplify right side
    23,027.70x = 411,724,128.24
  5. Step 5: Solve for x
    x = 411,724,128.24/23,027.70
  6. Step 6: Final answer
    x = 17,879.52

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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.