Home / 30,981.62-42,755.02-16,834.70

Finding the Fourth Proportional to 30,981.62, 42,755.02 and 16,834.70

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Solution

The fourth proportional to 30,981.62, 42,755.02 and 16,834.70 is: 23,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.62 : 42,755.02 = 16,834.70 : x
  2. Step 2: Convert to fraction form
    30,981.62/42,755.02 = 16,834.70/x
  3. Step 3: Cross multiply
    30,981.62x = 42,755.02 × 16,834.70
  4. Step 4: Simplify right side
    30,981.62x = 719,767,679.33
  5. Step 5: Solve for x
    x = 719,767,679.33/30,981.62
  6. Step 6: Final answer
    x = 23,232.09

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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.