Home / 30,818.82-42,529.95-16,671.68

Finding the Fourth Proportional to 30,818.82, 42,529.95 and 16,671.68

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Solution

The fourth proportional to 30,818.82, 42,529.95 and 16,671.68 is: 23,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.82 : 42,529.95 = 16,671.68 : x
  2. Step 2: Convert to fraction form
    30,818.82/42,529.95 = 16,671.68/x
  3. Step 3: Cross multiply
    30,818.82x = 42,529.95 × 16,671.68
  4. Step 4: Simplify right side
    30,818.82x = 709,045,504.17
  5. Step 5: Solve for x
    x = 709,045,504.17/30,818.82
  6. Step 6: Final answer
    x = 23,006.90

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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.