Home / 30,981.11-42,754.07-16,834.01

Finding the Fourth Proportional to 30,981.11, 42,754.07 and 16,834.01

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Solution

The fourth proportional to 30,981.11, 42,754.07 and 16,834.01 is: 23,231.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.11 : 42,754.07 = 16,834.01 : x
  2. Step 2: Convert to fraction form
    30,981.11/42,754.07 = 16,834.01/x
  3. Step 3: Cross multiply
    30,981.11x = 42,754.07 × 16,834.01
  4. Step 4: Simplify right side
    30,981.11x = 719,722,357.75
  5. Step 5: Solve for x
    x = 719,722,357.75/30,981.11
  6. Step 6: Final answer
    x = 23,231.01

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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.