Home / 30,648.11-42,295.48-17,219.09

Finding the Fourth Proportional to 30,648.11, 42,295.48 and 17,219.09

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Solution

The fourth proportional to 30,648.11, 42,295.48 and 17,219.09 is: 23,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.11 : 42,295.48 = 17,219.09 : x
  2. Step 2: Convert to fraction form
    30,648.11/42,295.48 = 17,219.09/x
  3. Step 3: Cross multiply
    30,648.11x = 42,295.48 × 17,219.09
  4. Step 4: Simplify right side
    30,648.11x = 728,289,823.10
  5. Step 5: Solve for x
    x = 728,289,823.10/30,648.11
  6. Step 6: Final answer
    x = 23,762.96

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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.