Home / 40,424.99-55,788.18-22,520

Finding the Fourth Proportional to 40,424.99, 55,788.18 and 22,520

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Solution

The fourth proportional to 40,424.99, 55,788.18 and 22,520 is: 31,078.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,424.99 : 55,788.18 = 22,520 : x
  2. Step 2: Convert to fraction form
    40,424.99/55,788.18 = 22,520/x
  3. Step 3: Cross multiply
    40,424.99x = 55,788.18 × 22,520
  4. Step 4: Simplify right side
    40,424.99x = 1,256,349,813.60
  5. Step 5: Solve for x
    x = 1,256,349,813.60/40,424.99
  6. Step 6: Final answer
    x = 31,078.54

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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.