Home / 39,976.10-55,165.92-22,070.78

Finding the Fourth Proportional to 39,976.10, 55,165.92 and 22,070.78

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Solution

The fourth proportional to 39,976.10, 55,165.92 and 22,070.78 is: 30,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.10 : 55,165.92 = 22,070.78 : x
  2. Step 2: Convert to fraction form
    39,976.10/55,165.92 = 22,070.78/x
  3. Step 3: Cross multiply
    39,976.10x = 55,165.92 × 22,070.78
  4. Step 4: Simplify right side
    39,976.10x = 1,217,554,883.82
  5. Step 5: Solve for x
    x = 1,217,554,883.82/39,976.10
  6. Step 6: Final answer
    x = 30,457.07

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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.