Home / 30,084.45-45,143.07-13,443.81

Finding the Fourth Proportional to 30,084.45, 45,143.07 and 13,443.81

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Solution

The fourth proportional to 30,084.45, 45,143.07 and 13,443.81 is: 20,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,084.45 : 45,143.07 = 13,443.81 : x
  2. Step 2: Convert to fraction form
    30,084.45/45,143.07 = 13,443.81/x
  3. Step 3: Cross multiply
    30,084.45x = 45,143.07 × 13,443.81
  4. Step 4: Simplify right side
    30,084.45x = 606,894,855.90
  5. Step 5: Solve for x
    x = 606,894,855.90/30,084.45
  6. Step 6: Final answer
    x = 20,173.04

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1.5x scale

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.