Home / 32,122.80-44,289.36-20,772.96

Finding the Fourth Proportional to 32,122.80, 44,289.36 and 20,772.96

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Solution

The fourth proportional to 32,122.80, 44,289.36 and 20,772.96 is: 28,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,122.80 : 44,289.36 = 20,772.96 : x
  2. Step 2: Convert to fraction form
    32,122.80/44,289.36 = 20,772.96/x
  3. Step 3: Cross multiply
    32,122.80x = 44,289.36 × 20,772.96
  4. Step 4: Simplify right side
    32,122.80x = 920,021,103.71
  5. Step 5: Solve for x
    x = 920,021,103.71/32,122.80
  6. Step 6: Final answer
    x = 28,640.75

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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.