Home / 30,198.35-45,288.30-14,395.05

Finding the Fourth Proportional to 30,198.35, 45,288.30 and 14,395.05

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Solution

The fourth proportional to 30,198.35, 45,288.30 and 14,395.05 is: 21,588.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.35 : 45,288.30 = 14,395.05 : x
  2. Step 2: Convert to fraction form
    30,198.35/45,288.30 = 14,395.05/x
  3. Step 3: Cross multiply
    30,198.35x = 45,288.30 × 14,395.05
  4. Step 4: Simplify right side
    30,198.35x = 651,927,315.92
  5. Step 5: Solve for x
    x = 651,927,315.92/30,198.35
  6. Step 6: Final answer
    x = 21,588.17

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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.