Home / 40,008.69-55,212.45-22,103.31

Finding the Fourth Proportional to 40,008.69, 55,212.45 and 22,103.31

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Solution

The fourth proportional to 40,008.69, 55,212.45 and 22,103.31 is: 30,502.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,008.69 : 55,212.45 = 22,103.31 : x
  2. Step 2: Convert to fraction form
    40,008.69/55,212.45 = 22,103.31/x
  3. Step 3: Cross multiply
    40,008.69x = 55,212.45 × 22,103.31
  4. Step 4: Simplify right side
    40,008.69x = 1,220,377,898.21
  5. Step 5: Solve for x
    x = 1,220,377,898.21/40,008.69
  6. Step 6: Final answer
    x = 30,502.82

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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.