Home / 30,078.11-41,510.88-17,331.77

Finding the Fourth Proportional to 30,078.11, 41,510.88 and 17,331.77

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Solution

The fourth proportional to 30,078.11, 41,510.88 and 17,331.77 is: 23,919.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.11 : 41,510.88 = 17,331.77 : x
  2. Step 2: Convert to fraction form
    30,078.11/41,510.88 = 17,331.77/x
  3. Step 3: Cross multiply
    30,078.11x = 41,510.88 × 17,331.77
  4. Step 4: Simplify right side
    30,078.11x = 719,457,024.66
  5. Step 5: Solve for x
    x = 719,457,024.66/30,078.11
  6. Step 6: Final answer
    x = 23,919.62

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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.