Home / 30,911.26-42,659.68-17,477.68

Finding the Fourth Proportional to 30,911.26, 42,659.68 and 17,477.68

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Solution

The fourth proportional to 30,911.26, 42,659.68 and 17,477.68 is: 24,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.26 : 42,659.68 = 17,477.68 : x
  2. Step 2: Convert to fraction form
    30,911.26/42,659.68 = 17,477.68/x
  3. Step 3: Cross multiply
    30,911.26x = 42,659.68 × 17,477.68
  4. Step 4: Simplify right side
    30,911.26x = 745,592,235.94
  5. Step 5: Solve for x
    x = 745,592,235.94/30,911.26
  6. Step 6: Final answer
    x = 24,120.41

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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.