Home / 30,947.04-42,706.80-16,799.04

Finding the Fourth Proportional to 30,947.04, 42,706.80 and 16,799.04

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Solution

The fourth proportional to 30,947.04, 42,706.80 and 16,799.04 is: 23,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.04 : 42,706.80 = 16,799.04 : x
  2. Step 2: Convert to fraction form
    30,947.04/42,706.80 = 16,799.04/x
  3. Step 3: Cross multiply
    30,947.04x = 42,706.80 × 16,799.04
  4. Step 4: Simplify right side
    30,947.04x = 717,433,241.47
  5. Step 5: Solve for x
    x = 717,433,241.47/30,947.04
  6. Step 6: Final answer
    x = 23,182.61

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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.