Home / 30,068.21-41,488.40-16,638.82

Finding the Fourth Proportional to 30,068.21, 41,488.40 and 16,638.82

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Solution

The fourth proportional to 30,068.21, 41,488.40 and 16,638.82 is: 22,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.21 : 41,488.40 = 16,638.82 : x
  2. Step 2: Convert to fraction form
    30,068.21/41,488.40 = 16,638.82/x
  3. Step 3: Cross multiply
    30,068.21x = 41,488.40 × 16,638.82
  4. Step 4: Simplify right side
    30,068.21x = 690,317,957.56
  5. Step 5: Solve for x
    x = 690,317,957.56/30,068.21
  6. Step 6: Final answer
    x = 22,958.40

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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.