Home / 40,126.86-55,379.16-23,131.71

Finding the Fourth Proportional to 40,126.86, 55,379.16 and 23,131.71

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Solution

The fourth proportional to 40,126.86, 55,379.16 and 23,131.71 is: 31,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,126.86 : 55,379.16 = 23,131.71 : x
  2. Step 2: Convert to fraction form
    40,126.86/55,379.16 = 23,131.71/x
  3. Step 3: Cross multiply
    40,126.86x = 55,379.16 × 23,131.71
  4. Step 4: Simplify right side
    40,126.86x = 1,281,014,669.16
  5. Step 5: Solve for x
    x = 1,281,014,669.16/40,126.86
  6. Step 6: Final answer
    x = 31,924.12

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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.