Home / 39,942.63-55,120.50-22,038.39

Finding the Fourth Proportional to 39,942.63, 55,120.50 and 22,038.39

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Solution

The fourth proportional to 39,942.63, 55,120.50 and 22,038.39 is: 30,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,942.63 : 55,120.50 = 22,038.39 : x
  2. Step 2: Convert to fraction form
    39,942.63/55,120.50 = 22,038.39/x
  3. Step 3: Cross multiply
    39,942.63x = 55,120.50 × 22,038.39
  4. Step 4: Simplify right side
    39,942.63x = 1,214,767,076.00
  5. Step 5: Solve for x
    x = 1,214,767,076.00/39,942.63
  6. Step 6: Final answer
    x = 30,412.80

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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.