Home / 30,711.43-42,381.63-17,282.91

Finding the Fourth Proportional to 30,711.43, 42,381.63 and 17,282.91

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Solution

The fourth proportional to 30,711.43, 42,381.63 and 17,282.91 is: 23,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711.43 : 42,381.63 = 17,282.91 : x
  2. Step 2: Convert to fraction form
    30,711.43/42,381.63 = 17,282.91/x
  3. Step 3: Cross multiply
    30,711.43x = 42,381.63 × 17,282.91
  4. Step 4: Simplify right side
    30,711.43x = 732,477,896.94
  5. Step 5: Solve for x
    x = 732,477,896.94/30,711.43
  6. Step 6: Final answer
    x = 23,850.33

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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.