Home / 40,989.85-61,493.41-13,285.69

Finding the Fourth Proportional to 40,989.85, 61,493.41 and 13,285.69

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Solution

The fourth proportional to 40,989.85, 61,493.41 and 13,285.69 is: 19,931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,989.85 : 61,493.41 = 13,285.69 : x
  2. Step 2: Convert to fraction form
    40,989.85/61,493.41 = 13,285.69/x
  3. Step 3: Cross multiply
    40,989.85x = 61,493.41 × 13,285.69
  4. Step 4: Simplify right side
    40,989.85x = 816,982,245.18
  5. Step 5: Solve for x
    x = 816,982,245.18/40,989.85
  6. Step 6: Final answer
    x = 19,931.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.