Home / 30,534.76-42,137.58-17,105.77

Finding the Fourth Proportional to 30,534.76, 42,137.58 and 17,105.77

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Solution

The fourth proportional to 30,534.76, 42,137.58 and 17,105.77 is: 23,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.76 : 42,137.58 = 17,105.77 : x
  2. Step 2: Convert to fraction form
    30,534.76/42,137.58 = 17,105.77/x
  3. Step 3: Cross multiply
    30,534.76x = 42,137.58 × 17,105.77
  4. Step 4: Simplify right side
    30,534.76x = 720,795,751.84
  5. Step 5: Solve for x
    x = 720,795,751.84/30,534.76
  6. Step 6: Final answer
    x = 23,605.74

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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.