Home / 30,940.92-42,697.67-17,511.80

Finding the Fourth Proportional to 30,940.92, 42,697.67 and 17,511.80

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Solution

The fourth proportional to 30,940.92, 42,697.67 and 17,511.80 is: 24,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.92 : 42,697.67 = 17,511.80 : x
  2. Step 2: Convert to fraction form
    30,940.92/42,697.67 = 17,511.80/x
  3. Step 3: Cross multiply
    30,940.92x = 42,697.67 × 17,511.80
  4. Step 4: Simplify right side
    30,940.92x = 747,712,756.46
  5. Step 5: Solve for x
    x = 747,712,756.46/30,940.92
  6. Step 6: Final answer
    x = 24,165.82

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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.