Home / 30,922.79-42,669.84-17,311.57

Finding the Fourth Proportional to 30,922.79, 42,669.84 and 17,311.57

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Solution

The fourth proportional to 30,922.79, 42,669.84 and 17,311.57 is: 23,887.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,922.79 : 42,669.84 = 17,311.57 : x
  2. Step 2: Convert to fraction form
    30,922.79/42,669.84 = 17,311.57/x
  3. Step 3: Cross multiply
    30,922.79x = 42,669.84 × 17,311.57
  4. Step 4: Simplify right side
    30,922.79x = 738,681,708.70
  5. Step 5: Solve for x
    x = 738,681,708.70/30,922.79
  6. Step 6: Final answer
    x = 23,887.94

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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.