Home / 30,158.84-45,253.24-13,530.62

Finding the Fourth Proportional to 30,158.84, 45,253.24 and 13,530.62

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Solution

The fourth proportional to 30,158.84, 45,253.24 and 13,530.62 is: 20,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.84 : 45,253.24 = 13,530.62 : x
  2. Step 2: Convert to fraction form
    30,158.84/45,253.24 = 13,530.62/x
  3. Step 3: Cross multiply
    30,158.84x = 45,253.24 × 13,530.62
  4. Step 4: Simplify right side
    30,158.84x = 612,304,394.21
  5. Step 5: Solve for x
    x = 612,304,394.21/30,158.84
  6. Step 6: Final answer
    x = 20,302.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.