Home / 30,619.29-45,917.28-18,142.83

Finding the Fourth Proportional to 30,619.29, 45,917.28 and 18,142.83

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Solution

The fourth proportional to 30,619.29, 45,917.28 and 18,142.83 is: 27,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.29 : 45,917.28 = 18,142.83 : x
  2. Step 2: Convert to fraction form
    30,619.29/45,917.28 = 18,142.83/x
  3. Step 3: Cross multiply
    30,619.29x = 45,917.28 × 18,142.83
  4. Step 4: Simplify right side
    30,619.29x = 833,069,405.10
  5. Step 5: Solve for x
    x = 833,069,405.10/30,619.29
  6. Step 6: Final answer
    x = 27,207.34

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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.