Home / 23,050.32-31,807.80-12,979.32

Finding the Fourth Proportional to 23,050.32, 31,807.80 and 12,979.32

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Solution

The fourth proportional to 23,050.32, 31,807.80 and 12,979.32 is: 17,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,050.32 : 31,807.80 = 12,979.32 : x
  2. Step 2: Convert to fraction form
    23,050.32/31,807.80 = 12,979.32/x
  3. Step 3: Cross multiply
    23,050.32x = 31,807.80 × 12,979.32
  4. Step 4: Simplify right side
    23,050.32x = 412,843,614.70
  5. Step 5: Solve for x
    x = 412,843,614.70/23,050.32
  6. Step 6: Final answer
    x = 17,910.54

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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.