Home / 19,503.45-29,271.56-8,418.51

Finding the Fourth Proportional to 19,503.45, 29,271.56 and 8,418.51

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Solution

The fourth proportional to 19,503.45, 29,271.56 and 8,418.51 is: 12,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,503.45 : 29,271.56 = 8,418.51 : x
  2. Step 2: Convert to fraction form
    19,503.45/29,271.56 = 8,418.51/x
  3. Step 3: Cross multiply
    19,503.45x = 29,271.56 × 8,418.51
  4. Step 4: Simplify right side
    19,503.45x = 246,422,878.48
  5. Step 5: Solve for x
    x = 246,422,878.48/19,503.45
  6. Step 6: Final answer
    x = 12,634.84

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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.