Home / 23,261.40-34,833.78-12,128.76

Finding the Fourth Proportional to 23,261.40, 34,833.78 and 12,128.76

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Solution

The fourth proportional to 23,261.40, 34,833.78 and 12,128.76 is: 18,162.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,261.40 : 34,833.78 = 12,128.76 : x
  2. Step 2: Convert to fraction form
    23,261.40/34,833.78 = 12,128.76/x
  3. Step 3: Cross multiply
    23,261.40x = 34,833.78 × 12,128.76
  4. Step 4: Simplify right side
    23,261.40x = 422,490,557.51
  5. Step 5: Solve for x
    x = 422,490,557.51/23,261.40
  6. Step 6: Final answer
    x = 18,162.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.