Home / 39,912.06-55,079.08-22,007.72

Finding the Fourth Proportional to 39,912.06, 55,079.08 and 22,007.72

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Solution

The fourth proportional to 39,912.06, 55,079.08 and 22,007.72 is: 30,370.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.06 : 55,079.08 = 22,007.72 : x
  2. Step 2: Convert to fraction form
    39,912.06/55,079.08 = 22,007.72/x
  3. Step 3: Cross multiply
    39,912.06x = 55,079.08 × 22,007.72
  4. Step 4: Simplify right side
    39,912.06x = 1,212,164,970.50
  5. Step 5: Solve for x
    x = 1,212,164,970.50/39,912.06
  6. Step 6: Final answer
    x = 30,370.89

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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.