Home / 39,912.12-55,079.10-22,007.77

Finding the Fourth Proportional to 39,912.12, 55,079.10 and 22,007.77

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Solution

The fourth proportional to 39,912.12, 55,079.10 and 22,007.77 is: 30,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.12 : 55,079.10 = 22,007.77 : x
  2. Step 2: Convert to fraction form
    39,912.12/55,079.10 = 22,007.77/x
  3. Step 3: Cross multiply
    39,912.12x = 55,079.10 × 22,007.77
  4. Step 4: Simplify right side
    39,912.12x = 1,212,168,026.91
  5. Step 5: Solve for x
    x = 1,212,168,026.91/39,912.12
  6. Step 6: Final answer
    x = 30,370.93

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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.