Home / 30,834.54-42,551.64-16,687.44

Finding the Fourth Proportional to 30,834.54, 42,551.64 and 16,687.44

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Solution

The fourth proportional to 30,834.54, 42,551.64 and 16,687.44 is: 23,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,834.54 : 42,551.64 = 16,687.44 : x
  2. Step 2: Convert to fraction form
    30,834.54/42,551.64 = 16,687.44/x
  3. Step 3: Cross multiply
    30,834.54x = 42,551.64 × 16,687.44
  4. Step 4: Simplify right side
    30,834.54x = 710,077,939.40
  5. Step 5: Solve for x
    x = 710,077,939.40/30,834.54
  6. Step 6: Final answer
    x = 23,028.65

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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.