Home / 30,654.32-42,282.42-18,551.84

Finding the Fourth Proportional to 30,654.32, 42,282.42 and 18,551.84

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Solution

The fourth proportional to 30,654.32, 42,282.42 and 18,551.84 is: 25,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,654.32 : 42,282.42 = 18,551.84 : x
  2. Step 2: Convert to fraction form
    30,654.32/42,282.42 = 18,551.84/x
  3. Step 3: Cross multiply
    30,654.32x = 42,282.42 × 18,551.84
  4. Step 4: Simplify right side
    30,654.32x = 784,416,690.65
  5. Step 5: Solve for x
    x = 784,416,690.65/30,654.32
  6. Step 6: Final answer
    x = 25,589.11

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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.