Home / 30,947.46-42,707.60-16,800.27

Finding the Fourth Proportional to 30,947.46, 42,707.60 and 16,800.27

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Solution

The fourth proportional to 30,947.46, 42,707.60 and 16,800.27 is: 23,184.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.46 : 42,707.60 = 16,800.27 : x
  2. Step 2: Convert to fraction form
    30,947.46/42,707.60 = 16,800.27/x
  3. Step 3: Cross multiply
    30,947.46x = 42,707.60 × 16,800.27
  4. Step 4: Simplify right side
    30,947.46x = 717,499,211.05
  5. Step 5: Solve for x
    x = 717,499,211.05/30,947.46
  6. Step 6: Final answer
    x = 23,184.43

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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.