Home / 39,168.36-54,050.78-21,262.76

Finding the Fourth Proportional to 39,168.36, 54,050.78 and 21,262.76

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Solution

The fourth proportional to 39,168.36, 54,050.78 and 21,262.76 is: 29,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.36 : 54,050.78 = 21,262.76 : x
  2. Step 2: Convert to fraction form
    39,168.36/54,050.78 = 21,262.76/x
  3. Step 3: Cross multiply
    39,168.36x = 54,050.78 × 21,262.76
  4. Step 4: Simplify right side
    39,168.36x = 1,149,268,762.95
  5. Step 5: Solve for x
    x = 1,149,268,762.95/39,168.36
  6. Step 6: Final answer
    x = 29,341.76

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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.