Home / 39,910.72-55,077.20-22,006.40

Finding the Fourth Proportional to 39,910.72, 55,077.20 and 22,006.40

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Solution

The fourth proportional to 39,910.72, 55,077.20 and 22,006.40 is: 30,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.72 : 55,077.20 = 22,006.40 : x
  2. Step 2: Convert to fraction form
    39,910.72/55,077.20 = 22,006.40/x
  3. Step 3: Cross multiply
    39,910.72x = 55,077.20 × 22,006.40
  4. Step 4: Simplify right side
    39,910.72x = 1,212,050,894.08
  5. Step 5: Solve for x
    x = 1,212,050,894.08/39,910.72
  6. Step 6: Final answer
    x = 30,369.06

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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.