Home / 23,150.23-31,947.41-13,078.78

Finding the Fourth Proportional to 23,150.23, 31,947.41 and 13,078.78

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Solution

The fourth proportional to 23,150.23, 31,947.41 and 13,078.78 is: 18,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,150.23 : 31,947.41 = 13,078.78 : x
  2. Step 2: Convert to fraction form
    23,150.23/31,947.41 = 13,078.78/x
  3. Step 3: Cross multiply
    23,150.23x = 31,947.41 × 13,078.78
  4. Step 4: Simplify right side
    23,150.23x = 417,833,099.79
  5. Step 5: Solve for x
    x = 417,833,099.79/23,150.23
  6. Step 6: Final answer
    x = 18,048.77

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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.