Home / 30,254.88-45,355.14-13,623.96

Finding the Fourth Proportional to 30,254.88, 45,355.14 and 13,623.96

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Solution

The fourth proportional to 30,254.88, 45,355.14 and 13,623.96 is: 20,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.88 : 45,355.14 = 13,623.96 : x
  2. Step 2: Convert to fraction form
    30,254.88/45,355.14 = 13,623.96/x
  3. Step 3: Cross multiply
    30,254.88x = 45,355.14 × 13,623.96
  4. Step 4: Simplify right side
    30,254.88x = 617,916,613.15
  5. Step 5: Solve for x
    x = 617,916,613.15/30,254.88
  6. Step 6: Final answer
    x = 20,423.70

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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.