Home / 19,581.47-29,380.65-7,103.26

Finding the Fourth Proportional to 19,581.47, 29,380.65 and 7,103.26

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Solution

The fourth proportional to 19,581.47, 29,380.65 and 7,103.26 is: 10,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.47 : 29,380.65 = 7,103.26 : x
  2. Step 2: Convert to fraction form
    19,581.47/29,380.65 = 7,103.26/x
  3. Step 3: Cross multiply
    19,581.47x = 29,380.65 × 7,103.26
  4. Step 4: Simplify right side
    19,581.47x = 208,698,249.02
  5. Step 5: Solve for x
    x = 208,698,249.02/19,581.47
  6. Step 6: Final answer
    x = 10,657.95

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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.