Home / 17,272.78-23,838.37-9,720.95

Finding the Fourth Proportional to 17,272.78, 23,838.37 and 9,720.95

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Solution

The fourth proportional to 17,272.78, 23,838.37 and 9,720.95 is: 13,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,272.78 : 23,838.37 = 9,720.95 : x
  2. Step 2: Convert to fraction form
    17,272.78/23,838.37 = 9,720.95/x
  3. Step 3: Cross multiply
    17,272.78x = 23,838.37 × 9,720.95
  4. Step 4: Simplify right side
    17,272.78x = 231,731,459.36
  5. Step 5: Solve for x
    x = 231,731,459.36/17,272.78
  6. Step 6: Final answer
    x = 13,415.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.