Home / 40,678.86-56,136.24-22,773.78

Finding the Fourth Proportional to 40,678.86, 56,136.24 and 22,773.78

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Solution

The fourth proportional to 40,678.86, 56,136.24 and 22,773.78 is: 31,427.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,678.86 : 56,136.24 = 22,773.78 : x
  2. Step 2: Convert to fraction form
    40,678.86/56,136.24 = 22,773.78/x
  3. Step 3: Cross multiply
    40,678.86x = 56,136.24 × 22,773.78
  4. Step 4: Simplify right side
    40,678.86x = 1,278,434,379.79
  5. Step 5: Solve for x
    x = 1,278,434,379.79/40,678.86
  6. Step 6: Final answer
    x = 31,427.49

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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.