Home / 30,620.18-45,938.91-12,165.14

Finding the Fourth Proportional to 30,620.18, 45,938.91 and 12,165.14

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Solution

The fourth proportional to 30,620.18, 45,938.91 and 12,165.14 is: 18,251.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.18 : 45,938.91 = 12,165.14 : x
  2. Step 2: Convert to fraction form
    30,620.18/45,938.91 = 12,165.14/x
  3. Step 3: Cross multiply
    30,620.18x = 45,938.91 × 12,165.14
  4. Step 4: Simplify right side
    30,620.18x = 558,853,271.60
  5. Step 5: Solve for x
    x = 558,853,271.60/30,620.18
  6. Step 6: Final answer
    x = 18,251.14

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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.