Home / 30,611.71-45,908.87-11,887.75

Finding the Fourth Proportional to 30,611.71, 45,908.87 and 11,887.75

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Solution

The fourth proportional to 30,611.71, 45,908.87 and 11,887.75 is: 17,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.71 : 45,908.87 = 11,887.75 : x
  2. Step 2: Convert to fraction form
    30,611.71/45,908.87 = 11,887.75/x
  3. Step 3: Cross multiply
    30,611.71x = 45,908.87 × 11,887.75
  4. Step 4: Simplify right side
    30,611.71x = 545,753,167.29
  5. Step 5: Solve for x
    x = 545,753,167.29/30,611.71
  6. Step 6: Final answer
    x = 17,828.25

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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.