Home / 40,072.86-55,299.20-21,923.51

Finding the Fourth Proportional to 40,072.86, 55,299.20 and 21,923.51

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Solution

The fourth proportional to 40,072.86, 55,299.20 and 21,923.51 is: 30,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,072.86 : 55,299.20 = 21,923.51 : x
  2. Step 2: Convert to fraction form
    40,072.86/55,299.20 = 21,923.51/x
  3. Step 3: Cross multiply
    40,072.86x = 55,299.20 × 21,923.51
  4. Step 4: Simplify right side
    40,072.86x = 1,212,352,178.08
  5. Step 5: Solve for x
    x = 1,212,352,178.08/40,072.86
  6. Step 6: Final answer
    x = 30,253.70

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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.