Home / 30,890.32-42,631.30-17,463.96

Finding the Fourth Proportional to 30,890.32, 42,631.30 and 17,463.96

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Solution

The fourth proportional to 30,890.32, 42,631.30 and 17,463.96 is: 24,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.32 : 42,631.30 = 17,463.96 : x
  2. Step 2: Convert to fraction form
    30,890.32/42,631.30 = 17,463.96/x
  3. Step 3: Cross multiply
    30,890.32x = 42,631.30 × 17,463.96
  4. Step 4: Simplify right side
    30,890.32x = 744,511,317.95
  5. Step 5: Solve for x
    x = 744,511,317.95/30,890.32
  6. Step 6: Final answer
    x = 24,101.77

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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.