Home / 30,834.80-42,551.88-16,687.52

Finding the Fourth Proportional to 30,834.80, 42,551.88 and 16,687.52

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Solution

The fourth proportional to 30,834.80, 42,551.88 and 16,687.52 is: 23,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,834.80 : 42,551.88 = 16,687.52 : x
  2. Step 2: Convert to fraction form
    30,834.80/42,551.88 = 16,687.52/x
  3. Step 3: Cross multiply
    30,834.80x = 42,551.88 × 16,687.52
  4. Step 4: Simplify right side
    30,834.80x = 710,085,348.54
  5. Step 5: Solve for x
    x = 710,085,348.54/30,834.80
  6. Step 6: Final answer
    x = 23,028.70

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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.