Home / 30,134.88-45,143.46-14,317.40

Finding the Fourth Proportional to 30,134.88, 45,143.46 and 14,317.40

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Solution

The fourth proportional to 30,134.88, 45,143.46 and 14,317.40 is: 21,448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,134.88 : 45,143.46 = 14,317.40 : x
  2. Step 2: Convert to fraction form
    30,134.88/45,143.46 = 14,317.40/x
  3. Step 3: Cross multiply
    30,134.88x = 45,143.46 × 14,317.40
  4. Step 4: Simplify right side
    30,134.88x = 646,336,974.20
  5. Step 5: Solve for x
    x = 646,336,974.20/30,134.88
  6. Step 6: Final answer
    x = 21,448.13

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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.