Home / 27,017.09-40,492.80-19,121.91

Finding the Fourth Proportional to 27,017.09, 40,492.80 and 19,121.91

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Solution

The fourth proportional to 27,017.09, 40,492.80 and 19,121.91 is: 28,659.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,017.09 : 40,492.80 = 19,121.91 : x
  2. Step 2: Convert to fraction form
    27,017.09/40,492.80 = 19,121.91/x
  3. Step 3: Cross multiply
    27,017.09x = 40,492.80 × 19,121.91
  4. Step 4: Simplify right side
    27,017.09x = 774,299,677.25
  5. Step 5: Solve for x
    x = 774,299,677.25/27,017.09
  6. Step 6: Final answer
    x = 28,659.63

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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.