Home / 39,137.12-54,005.64-22,142.91

Finding the Fourth Proportional to 39,137.12, 54,005.64 and 22,142.91

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Solution

The fourth proportional to 39,137.12, 54,005.64 and 22,142.91 is: 30,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.12 : 54,005.64 = 22,142.91 : x
  2. Step 2: Convert to fraction form
    39,137.12/54,005.64 = 22,142.91/x
  3. Step 3: Cross multiply
    39,137.12x = 54,005.64 × 22,142.91
  4. Step 4: Simplify right side
    39,137.12x = 1,195,842,026.01
  5. Step 5: Solve for x
    x = 1,195,842,026.01/39,137.12
  6. Step 6: Final answer
    x = 30,555.19

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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.