Home / 31,995.70-48,015.15-20,875.30

Finding the Fourth Proportional to 31,995.70, 48,015.15 and 20,875.30

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Solution

The fourth proportional to 31,995.70, 48,015.15 and 20,875.30 is: 31,327.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.70 : 48,015.15 = 20,875.30 : x
  2. Step 2: Convert to fraction form
    31,995.70/48,015.15 = 20,875.30/x
  3. Step 3: Cross multiply
    31,995.70x = 48,015.15 × 20,875.30
  4. Step 4: Simplify right side
    31,995.70x = 1,002,330,660.80
  5. Step 5: Solve for x
    x = 1,002,330,660.80/31,995.70
  6. Step 6: Final answer
    x = 31,327.04

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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.