Home / 30,927.62-42,679.98-16,780.43

Finding the Fourth Proportional to 30,927.62, 42,679.98 and 16,780.43

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Solution

The fourth proportional to 30,927.62, 42,679.98 and 16,780.43 is: 23,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927.62 : 42,679.98 = 16,780.43 : x
  2. Step 2: Convert to fraction form
    30,927.62/42,679.98 = 16,780.43/x
  3. Step 3: Cross multiply
    30,927.62x = 42,679.98 × 16,780.43
  4. Step 4: Simplify right side
    30,927.62x = 716,188,523.49
  5. Step 5: Solve for x
    x = 716,188,523.49/30,927.62
  6. Step 6: Final answer
    x = 23,156.92

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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.